| Name | Date | Parish | Page | Father | Mother |
| COSTAIN, Alfred Moore | 4 Feb 1890 | Rushen | 187 | COSTAIN, Alfred | MOORE, Annie Jane |
| COSTAIN, Alfred Ernest | 14 Dec 1897 | Rushen | 271 | COSTAIN, William | MC LAUGHLIN, Mary |
| COSTAIN, Alice Eleanor | 10 Apr 1884 | Arbory | 104 | COSTAIN, Thomas | OWENS, Elizabeth |
| COSTAIN, Allen | 10-Feb-00 | Rushen | 298 | COSTAIN, John | HARVEY, Ruth |
| COSTAIN, Amy Sarah | 20 Jan 1879 | Arbory | 20 | COSTAIN, Thomas | KINVIG, Elizabeth |
| COSTAIN, Amy Catherine | 21 May 1882 | Rushen | 78 | COSTAIN, Henry | TAYLOR, Martha Eliza |
| COSTAIN, Annie May | 21 Dec 1882 | Castletown | 63 | COSTAIN, William | CUBBON, Eleanor |
| COSTAIN, Annie May | 12 Jun 1884 | Rushen | 108 | COSTAIN, Richard | PRESTON, Margaret Ann |
| COSTAIN, Annie Catheri | 27 Nov 1885 | Rushen | 130 | COSTAIN, William | QUARRIE, Ann |
| COSTAIN, Annie Elizabe | 7 Jun 1888 | Rushen | 165 | COSTAIN, Alfred | MOORE, Annie Jane |
| COSTAIN, Annie Margare | 20 Mar 1889 | Rushen | 175 | COSTAIN, Thomas | CHRISTIAN, Jane |
| COSTAIN, Annie Jane | 7 Oct 1892 | Rushen | 217 | COSTAIN, James | GRIFFIN, Anna |
| COSTAIN, Annie | 14 May 1898 | Arbory | 277 | COSTAIN, Richard | GIBSON, Annie |
| COSTAIN, Annie Jane | 15 Apr 1899 | Arbory | 288 | COSTAIN, Tom | CARRIN, Edith |
| COSTAIN, Arthur Henry | 19 Jan 1894 | Rushen | 233 | COSTAIN, Alfred | MOORE, Annie Jane |
| COSTAIN, Benjamin | 8 Sep 1898 | Rushen | 280 | COSTAIN, James | QUAYLE, Margaret |
| COSTAIN, Caroline Eliz | 10 Dec 1892 | Rushen | 219 | COSTAIN, William | LAUGHLIN, Mary |
| COSTAIN, Catherine Mar | 13 May 1889 | Malew | 109 | COSTAIN, John | COSTAIN, Isabella |
| COSTAIN, Katherine May | 22 Sep 1893 | Rushen | 230 | COSTAIN, Henry | TAYLOR, Martha Eliza |
| COSTAIN, Charles | 24 Dec 1889 | Arbory | 194 | COSTAIN, Thomas | KNEALE, Mary |
| COSTAIN, Darwin Murray | 11 May 1886 | Castletown | 88 | COSTAIN, William | CUBBON, Eleanor |
| COSTAIN, Eden Quayle | 5 Jun 1888 | Rushen | 164 | COSTAIN, James | QUAYLE, Margaret |
| COSTAIN, Edith | 25 Dec 1899 | Arbory | 297 | COSTAIN, William Henry | GELL, Eliza Margaret |
| COSTAIN, Edward Ellis | 3 Nov 1890 | Rushen | 195 | COSTAIN, James | QUAYLE, Margaret |
| COSTAIN, Edward | 12-Feb-01 | Arbory | 308 | COSTAIN, Richard | GIBSON, Annie |
| COSTAIN, Edwin | 17 Jul 1881 | Rushen | 61 | COSTAIN, Richard | PRESTON, Ann |
| COSTAIN, Edwin | 29 Mar 1884 | Rushen | 105 | COSTAIN, Henry | TAYLOR, Martha Eliza |
| COSTAIN, Edwin Corrin | 3 Jul 1895 | Rushen | 248 | COSTAIN, John | CORRIN, Ann Jane |
| COSTAIN, Nellie | 23 Sep 1880 | Castletown | 45 | COSTAIN, William | CUBBON, Eleanor |
| COSTAIN, Eleanor | 3 Oct 1880 | Rushen | 50 | COSTAIN, John | QUIRK, Margaret |
| COSTAIN, Eleanor | 19 May 1882 | Castletown | 58 | COSTAIN, William | COWLEY, Annie |
| COSTAIN, Eleanor Harri | 5 Apr 1885 | Rushen | 121 | COSTAIN, Henry | TAYLOR, Martha Eliza |
| COSTAIN, Eleanor Jane | 27 Sep 1885 | Rushen | 127 | COSTAIN, Thomas | CHRISTIAN, Jane |
| COSTAIN, Eleanor Marga | 15 Jul 1889 | Ramsey | 240 | COSTAIN, John James | COSTAIN, Eleanor Margaret |
| COSTAIN, Eleanor Marga | 27 Jul 1898 | Rushen | 280 | COSTAIN, Thomas | KEIG, Annie |
| COSTAIN, Elizabeth Jos | 28 Apr 1891 | Rushen | 201 | COSTAIN, Richard | PRESTON, Ann Margaret |
| COSTAIN, Elizabeth Ros | 22 Sep 1893 | Rushen | 230 | COSTAIN, Henry | TAYLOR, Martha Eliza |
| COSTAIN, Ella Margaret | 17 Nov 1891 | Rushen | 207 | COSTAIN, Alfred | MOORE, Annie Jane |
| COSTAIN, Emily Christi | 1 Nov 1879 | Rushen | 36 | COSTAIN, Henry | TAYLOR, Martha Eliza |
| COSTAIN, Emily Elizabe | 6 Aug 1883 | Arbory | 92 | COSTAIN, Thomas | COSTAIN, Elizabeth |
| COSTAIN, Emily | 8 Sep 1883 | Arbory | 97 | Not given | COSTAIN, Elizabeth |
| COSTAIN, Emily | 10 Sep 1892 | Rushen | 216 | Not given | COSTAIN, Catherine |
| COSTAIN, Emily Ellen | 18 Jul 1898 | Douglas | 1379 | COSTAIN, John Udas | SKILLICORN, Emily Selina |
| COSTAIN, Emily May | 2 Nov 1898 | Arbory | 283 | Not given | COSTAIN, Catherine |
| COSTAIN, Emily Matilda | 28-Apr-01 | Arbory | 310 | COSTAIN, William | KERMODE, Margaret Matilda |
| COSTAIN, Enid Eleanor | 16 Jun 1899 | Rushen | 290 | COSTAIN, Thomas Edward | CAIN, Miriam Eleanor |
| COSTAIN, Esther Blance | 20 Mar 1897 | Rushen | 266 | COSTAIN, Richard | MOORE, Mary Jane |
| COSTAIN, Ethel | 18 Jan 1886 | Rushen | 132 | COSTAIN, James | QUAYLE, Margaret |
| COSTAIN, Ethel Mary | 17 Jun 1887 | Castletown | 98 | COSTAIN, William | COWLEY, Annie |
| COSTAIN, Ethel Isabel | 10 Feb 1893 | Rushen | 223 | COSTAIN, John | HARVEY, Ruth |
| COSTAIN, Ethel May | 21 Jun 1895 | Malew | 156 | COSTAIN, John | COSTAIN, Isabella |
| COSTAIN, Ethel Doris | 8 Apr 1896 | Rushen | 256 | COSTAIN, Alfred | MOORE, Annie Jane |
| COSTAIN, Frederick | 23 Sep 1882 | Arbory | 82 | COSTAIN, Thomas | KINVIG, Elizabeth |
| COSTAIN, Frederick Ern | 16 Nov 1886 | Rushen | 147 | COSTAIN, John | TAYLOR, Ann |
| COSTAIN, George Presto | 7 Jul 1886 | Rushen | 140 | COSTAIN, Richard | PRESTON, Ann Margaret |
| COSTAIN, George Fletch | 28 Aug 1890 | Arbory | 193 | COSTAIN, Richard | GIBSON, Annie |
| COSTAIN, George Fletch | 17 Dec 1892 | Arbory | 220 | COSTAIN, Richard | GIBSON, Annie |
| COSTAIN, George Willia | 1 May 1896 | Malew | 163 | Not given | COSTAIN, Elizabeth Jane |
| COSTAIN, Harold George | 22 Feb 1899 | Rushen | 287 | COSTAIN, Thomas | CHRISTIAN, Jane |
| COSTAIN, Harvey | 20 Sep 1879 | Rushen | 34 | COSTAIN, Thomas | BELL, Jane |
| COSTAIN, Harvey | 10 Nov 1895 | Rushen | 252 | COSTAIN, Thomas Edward | CAIN, Mariam Eleanor |
| COSTAIN, Henry | 1 Feb 1879 | Rushen | 21 | COSTAIN, William | CREGEEN, Elizabeth |
| COSTAIN, Harry Roland | 11 Aug 1884 | Castletown | 74 | COSTAIN, William | CUBBON, Eleanor |
| COSTAIN, Henry Alfred | 8 Feb 1886 | Rushen | 133 | Not given | COSTAIN, Dorothy |
| COSTAIN, Harry Harvey | 30 Jan 1890 | Rushen | 191 | COSTAIN, John | HARVEY, Ruth |
| COSTAIN, Heywood | 6 Oct 1899 | Rushen | 295 | COSTAIN, James | QUAYLE, Margaret |
| COSTAIN, James Ernest | 2 Aug 1881 | Rushen | 61 | COSTAIN, James | QUAYLE, Margaret |
| COSTAIN, James | 8 Aug 1881 | Arbory | 62 | Not given | COSTAIN, Elizabeth |
| COSTAIN, James Edward | 16 Nov 1890 | Rushen | 196 | COSTAIN, John James | COSTAIN, Eleanor Magaret |
| COSTAIN, James Arthur | 30 Dec 1894 | Rushen | 241 | COSTAIN, Thomas | CHRISTIAN, Jane |
| COSTAIN, James Corrin | 24 Dec 1895 | Arbory | 253 | COSTAIN, Richard | GIBSON, Annie |
| COSTAIN, Jessie | 22 Nov 1890 | Rushen | 197 | COSTAIN, William | CUBBON, Elanor |
| COSTAIN, Jessie | 18 Sep 1898 | Arbory | 282 | COSTAIN, John | KINVIG, Jane |
| COSTAIN, John | 23 Dec 1878 | Rushen | 18 | COSTAIN, Richard | PRESTON, Margaret Ann |
| COSTAIN, John Sunderla | 18 Oct 1879 | Castletown | 37 | COSTAIN, William | COWLEY, Annie |
| COSTAIN, John Alfred | 9 Nov 1882 | Arbory | 85 | COSTAIN, Richard | GIBSON, Annie |
| COSTAIN, John Thomas | 17 Mar 1885 | Arbory | 120 | Not given | COSTAIN, Elizabeth |
| COSTAIN, John James | 1 Jan 1887 | Arbory | 148 | COSTAIN, James | KENNAH, Jane |
| COSTAIN, John Christia | 31 Mar 1892 | Rushen | 212 | COSTAIN, Thomas | CHRISTIAN, Jane |
| COSTAIN, John Robert | 6 Aug 1893 | Rushen | 228 | COSTAIN, James | QUAYLE, Margaret |
| COSTAIN, John Athol | 27 Aug 1897 | Malew | 174 | Not given | COSTAIN, Elizabeth |
| COSTAIN, John Frederic | 2 Jan 1899 | Arbory | 285 | COSTAIN, Thomas | KNEALE, Mary |
| COSTAIN, John Edgar | 01-Sep-00 | Rushen | 303 | COSTAIN, John | CARRIN, Ann Jane |
| COSTAIN, Joseph Edie | 7 May 1892 | Malew | 131 | COSTAIN, John | COSTAIN, Isabella |
| COSTAIN, Kathleen | 18 Oct 1883 | Rushen | 98 | COSTAIN, John | CORRIN, Ann Jane |
| COSTAIN, Laura | 6 Jan 1893 | Rushen | 222 | COSTAIN, William | CUBBON, Eleanor |
| COSTAIN, Lillian | 29 Jun 1891 | Rushen | 204 | COSTAIN, Thomas Edward | CAIN, Miriam Eleanor |
| COSTAIN, Lilian Cregee | 25-Nov-00 | Arbory | 305 | COSTAIN, William | CORLETT, Lilian |
| COSTAIN, Lily Catherin | 28 Apr 1891 | Rushen | 201 | COSTAIN, Richard | PRESTON, Ann Margaret |
| COSTAIN, Lily | 5 Oct 1896 | Arbory | 261 | COSTAIN, John | KINVIG, Jane Rebecca |
| COSTAIN, Lucy | 28 Dec 1890 | Rushen | 198 | COSTAIN, Thomas | CHRISTIAN, Jane |
| COSTAIN, Maggie | 4 Sep 1878 | Arbory | 6 | COSTAIN, William | BRIDSON, Christian |
| COSTAIN, Margaret Ann | 28 Mar 1882 | Rushen | 73 | COSTAIN, John | TAYLOR, Ann |
| COSTAIN, Margaret Jane | 17 Nov 1884 | Ramsey | 154 | Not given | COSTAIN, Jane |
| COSTAIN, Margaret Jane | 10 Aug 1887 | Arbory | 155 | COSTAIN, Thomas | KNEALE, Mary |
| COSTAIN, Margaret Jane | 20 Jul 1896 | Rushen | 259 | COSTAIN, James | QUAYLE, Margaret |
| COSTAIN, Marian Jane | 28 May 1890 | Rushen | 189 | COSTAIN, Thomas Edward | CAIN, Mariam Elanor |
| COSTAIN, Marjorie Alic | 23 Jun 1891 | Rushen | 204 | COSTAIN, Henry | TAYLOR, Martha Eliza |
| COSTAIN, Marjorie | 25 Feb 1895 | Rushen | 244 | COSTAIN, Richard | MOORE, Mary Jane |
| COSTAIN, Mary Jane | 25 Mar 1898 | Ramsey | 390 | Not given | COSTAIN, Jane |
| COSTAIN, Maud Eveline | 9 Apr 1894 | Arbory | 234 | COSTAIN, James | GRIFFIN, Anna |
| COSTAIN, Minnie | 16 Mar 1879 | Castletown | 31 | COSTAIN, William | CUBBON, Eleanor |
| COSTAIN, Rachel | 13-Jan-01 | Rushen | 307 | COSTAIN, Eden Cubbon | MIDDLETON, Hannah Lowe |
| COSTAIN, Richard Henry | 6 Sep 1878 | Arbory | 8 | COSTAIN, Richard | KNEALE, Annie |
| COSTAIN, Richard Harol | 22 Apr 1879 | Rushen | 27 | COSTAIN, John | TAYLOR, Ann |
| COSTAIN, Richard Henry | 8 Sep 1883 | Rushen | 94 | COSTAIN, James | QUAYLE, Margaret |
| COSTAIN, Richard Marri | 16 Dec 1884 | Castletown | 77 | COSTAIN, William | COWLEY, Annie |
| COSTAIN, Robert Henry | 11 Jan 1881 | Arbory | 53 | COSTAIN, Thomas | OWENS, Elizabeth |
| COSTAIN, Robert Fraser | 8 Feb 1888 | Arbory | 161 | COSTAIN, Richard | GIBSON, Annie |
| COSTAIN, Robert Arthur | 23 Jan 1895 | Rushen | 242 | Not given | COSTAIN, Eleanor Annie |
| COSTAIN, Ruth | 31 Jan 1897 | Rushen | 264 | COSTAIN, John | HARVEY, Ruth |
| COSTAIN, Sarah Margare | 1 Nov 1883 | Arbory | 99 | Not given | COSTAIN, Margaret |
| COSTAIN, Selina Cather | 11 Sep 1880 | Castletown | 46 | COSTAIN, Edward | QUAYLE, Sarah |
| COSTAIN, Stanley Howar | 14 Dec 1899 | Rushen | 297 | COSTAIN, William Henry | LOUGHLIN, Mary Louisa |
| COSTAIN, Thomas Josep | 3 Nov 1878 | Rushen | 17 | Not given | COSTAIN, Jane |
| COSTAIN, Tom Gibson | 6 Aug 1880 | Arbory | 47 | COSTAIN, Richard | GIBSON, Annie |
| COSTAIN, Thomas Edward | 29 Jul 1885 | Rushen | 125 | COSTAIN, John | CORRIN, Ann Jane |
| COSTAIN, Tom Geoffrey | 6 Mar 1887 | Rushen | 151 | COSTAIN, Thomas | CHRISTIAN, Jane |
| COSTAIN, Thomas Eden | 3 Sep 1891 | Rushen | 206 | COSTAIN, John | CORRIN, Ann Jane |
| COSTAIN, Thomas Henry | 9 Sep 1894 | Arbory | 239 | COSTAIN, Thomas | KNEALE, Mary |
| COSTAIN, Thomas Harold | 21 Sep 1899 | Douglas | 1461 | COSTAIN, Albert Owen | KISSACK, Margaret Ann |
| COSTAIN, Thomas Henry | 12 Oct 1899 | Douglas | 1463 | COSTAIN, John Udas | SKILLICORN, Emily |
| COSTAIN, Thomas Keig | 22-Sep-00 | Rushen | 303 | COSTAIN, William | KEIG, Catherine |
| COSTAIN, Walter Percy | 12 Feb 1890 | Rushen | 187 | COSTAIN, Henry | TAYLOR, Martha Eliza |
| COSTAIN, Wilfred | 10 Jun 1880 | Rushen | 45 | COSTAIN, William | QUARRIE, Ann |
| COSTAIN, Wilfred More | 30 Sep 1890 | Rushen | 195 | COSTAIN, Richard | MOORE, Mary Jane |
| COSTAIN, William Henry | 21 Sep 1878 | Rushen | 11 | COSTAIN, Henry | TAILOR, Martha Eliza |
| COSTAIN, William David | 27 Jun 1885 | Arbory | 124 | COSTAIN, Richard | GIBSON, Annie |
| COSTAIN, William Henry | 4 Jul 1886 | Ramsey | 184 | Not given | COSTAIN, Jane |
| COSTAIN, William | 5 Jun 1890 | Castletown | 122 | COSTAIN, William | COWLEY, Annie |
| COSTAIN, William Edwar | 3 Sep 1891 | Rushen | 206 | COSTAIN, John | CORRIN, Ann Jane |
| COSTAIN, William John | 3 Mar 1894 | Rushen | 233 | COSTAIN, William | LAUGHLIN, Mary |
| COSTAIN, William Thoma | 4 Jun 1895 | Rushen | 247 | COSTAIN, James | QUAYLE, Margaret |
| COSTAIN, William Alfre | 14 Oct 1898 | Arbory | 282 | COSTAIN, William | CREBBIN, Margaret Matilda |
| COSTAIN, William Ernes | 1 Nov 1899 | Arbory | 295 | COSTAIN, William | CORLETT, Lillian |
| COSTEEN, Charles | 4 Oct 1878 | Mal | | COSTEEN, Hugh | CORLETT, Elizabeth |
| COSTEEN, Frederick | 1 Oct 1898 | Ram | | COSTEEN, Robert | COMAISH, Agnes |
| COSTEEN, John Corlett | 30 Dec 1880 | Mal | | COSTEEN, Hugh | CORLETT, Elizabeth |
| COSTEEN, Thomas Samuel | 12 Jul 1882 | Mal | | COSTEEN, Hugh | CORLETT, Elizabeth |