| Name | Date | Parish | Page | Father | Mother |
| IDDON, Alice | 30 Aug 1882 | Douglas | 385 | IDDON, James | CUNNINGHAM, Mary Ann |
| IDDON, Isaac | 26 May 1887 | Douglas | 646 | IDDON, Isaac | CUNNINGHAM, Mary Ann |
| IDDON, John | 19 Sep 1884 | Douglas | 489 | IDDON, Isaac | CUNNINGHAM, Mary Ann |
| IDDON, Thomas | 2 Dec 1881 | Douglas | 345 | IDDON, Thomas | MOORE, Ann Jane |
| IDDON, Thomas Patrick | 4 Sep 1888 | Douglas | 727 | IDDON, Isaac | CUNNINGHAM, Mary Ann |
| IDEI, Shiro Bernard | 01-Sep-00 | Douglas | 1528 | IDEI, Kikuzi Simidzu | SANDERSON, Sarah Elizabeth |
| IDER, Hidekuni Samwrok | 12 Sep 1898 | Onchan | 1388 | IDER, Kikuzi Simidzu | SANDERSON, Sarah Elizabeth |
| INCE, Austin Victor | 23 Oct 1897 | Malew | 175 | INCE, William | FARGHER, Elizabeth |
| INCE, Elenor | 3 May 1889 | Malew | 109 | INCE, William | FARGHER, Betsy |
| INCE, Emily | 1 May 1885 | Malew | 75 | INCE, William | FARAGHER, Elizabeth |
| INCE, Henry | 10 Jun 1886 | Malew | 85 | INCE, William | FARGHER, Elizabeth |
| INCE, Lissey | 24 Aug 1887 | Malew | 96 | INCE, William | FARGHER, Betsy |
| INCE, William Edwin | 12 Mar 1884 | Malew | 65 | INCE, William | FARGHER, Elizabeth |
| IND, Alfred | 21 Sep 1896 | Douglas | 1259 | IND, James | SMITH, Mary Ellen |
| INGERSON, Lilian Marga | 6 Jun 1888 | Bra | | INGERSON, William | JAMIESON, Elizabeth |
| INGHAM, Florence Lucy | 2 Jun 1885 | Douglas | 528 | INGHAM, John | SENOGLES, Louisa Jane |
| INGHAM, John Wilfred H | 11 Jul 1881 | Douglas | 332 | INGHAM, Christopher | SENOGLES, Mary Ann |
| INGLIS, Christina | 1 Sep 1898 | Douglas | 1390 | INGLIS, James | CAMPBELL, Mary Ann |
| INGLIS, Isobel Margaet | 1 Jun 1887 | Douglas | 644 | INGLIS, David | FLETCHER, Jane |
| INGLIS, Jean Margaret | 28 Feb 1894 | Douglas | 1076 | INGLIS, David | FLETCHER, Jane |
| INGLIS, John | 20 Nov 1859 | Douglas | 42 | INGLIS, John | CHRISTIAN, Isabella |
| INGLIS, John Downie | 30 Sep 1896 | Douglas | 1258 | INGLIS, James | CAMPBELL, Mary Ann |
| INGRAM, Helen Brown | 1 Mar 1885 | Douglas | 510 | INGRAM, William | SIMPSON, Annie |
| ION, Dorothy Bromfield | 9 Nov 1896 | Bra | | ION, Claudius James | CANNELL, Catherine |
| ION, Frank Bromfield | 17 Dec 1898 | Bra | | ION, Claudius James | FIELDING, Florence |
| ION, Gertrude Bromfiel | 25 Apr 1900 | Bra | | ION, Claudius James | DUFFEY, Mary |
| ION, Michael Bromfield | 13 Nov 1897 | Bra | | ION, Claudius James | JAMIESON, Elizabeth |
| IRELAND, Godfrey Johns | 25 Aug 1886 | Lon | | IRELAND, William John | LACE, Eleanor |
| IRELAND, Gordon Donald | 16 Oct 1884 | Lon | | IRELAND, William John | LEECE, Eleanor |
| IRELAND, Mary | 3 Mar 1882 | Lonan | 45 | IRELAND, William John | KENNERY, Margaret |
| IRELAND, Robert Franci | 8 Mar 1879 | Lonan | 10 | IRELAND, William John | KENNERY, Margaret |
| IRVINE, John | 26 May 1882 | Pee | | IRVINE, John | KILLIP, Emma Helena |
| IRVING, Alice | 30 Nov 1894 | Pee | | IRVING, Joseph | JAMIESON, Elizabeth |
| IRVING, Dora | 23 Jan 1899 | Pee | | IRVING, Joseph | SANGDON ??, Elizabeth |
| IRVING, Eleanor | 5 Sep 1888 | Pee | | IRVING, Joseph | GILMORE, Ellen |
| IRVING, Elsie Isabel | 24 Feb 1891 | Lezayre | 64 | IRVING, James | TEARE, Esther Elizabeth |
| IRVING, Gordon Tyson | 6 Jun 1898 | Lezayre | 92 | IRVING, James | TEARE, Esther Elizabeth |
| IRVING, Isobell | 28 May 1897 | Pee | | IRVING, Joseph | GILMORE, Ellen |
| IRVING, Jackson | 3 May 1900 | Pee | | IRVING, Joseph | WILKINS, Ellen |
| IRVING, Jackson | 3 May 1900 | Pee | | IRVING, Joseph | KELLY, Alice |
| IRVING, Joseph | 30 Nov 1892 | Pee | | IRVING, Joseph | JAMIESON, Elizabeth |
| IRVING, Raymond James | 14 Sep 1888 | Lezayre | 52 | IRVING, James | TEARE, Esther Elizabeth |
| IRVING, Stanley Gordon | 11 Jul 1895 | Lezayre | 81 | IRVING, James | TEARE, Esther Elizabeth |
| IRVING, Susannah | 27 Sep 1886 | Lezayre | 42 | IRVING, James | TEARE, Esther Elizabeth |
| IRVING, Thomas | 2 Jan 1891 | Pee | | IRVING, Joseph | DUFFY, Mary |
| IRVING, William Radcli | 2 Jul 1887 | Pee | | IRVING, Joseph | GILMORE, Ellen |
| ISDALE, Emily | 2 Aug 1864 | Douglas | 76 | ISDALE, William | HARRISON, Sarah |
| ISDALE, Frederick Will | 13 Apr 1861 | Douglas | 50 | ISDALE, William | HARRISON, Sarah |
| ISDALE, James | 22 Nov 1862 | Douglas | 58 | ISDALE, William | HARRISON, Sarah |
| ISDALE, John George | 24 Oct 1859 | Douglas | 43 | ISDALE, William | HARRISON, Sarah |
| ISDALE, Sarah Ann | 17 Nov 1863 | Douglas | 66 | ISDALE, William | HARRISON, Sarah |
| ISHERWOOD, Ethel Mayr | 14 Oct 1896 | Douglas | 1261 | ISHERWOOD, William Slater | MASON, Mary Ada |
| ISHERWOOD, Hilda Chris | 16 Nov 1899 | Douglas | 1475 | ISHERWOOD, William Slater | MASON, Mary Ada |
| ISHERWOOD, Terence Har | 4 May 1894 | Douglas | 1092 | ISHERWOOD, William Slater | MASON, Mary Ada |
| IVER, Mary Jane | 21 Jul 1882 | Douglas | 381 | IVER, William | FARGHER, Betsy |