Acronym |
Definition |
| IORM | Improved Order of Red Men |
| IPM | Inquisition Post Mortem |
| ISANNZ | Irish Studies Association of Australia and New Zealand |
| ISBGFH | International Society for British Genealogy and Family History |
| ISFHWE | International Society of Family History Writers and Editors |
| ISOGG | International Society Of Genetic Genealogy |
| Iss. | issue [offspring] |
| IUI | Intra Uterine Insemination |
| JGS | Jewish Genealogical Society |
| JM | Jure Matris (in the right of one's mother) |
| JU | Jure Uxoris (in the right of one's wife) |
| JWGS | John Wintrip Genealogy Specialist |
| K | Killed |
| KB | Knight of Bath |
| KT | Knight |
| KT | Knight of the Thistle |
| LD | Lord |
| LEG | LEGacy |
| LG | Living Generations |
| LGS | Liverpool Genealogy Society, Inc. |
| LIV | LIVing |
| LOD | Line Of Descent |
| LPMS | Legitimatio Per Matrimonium Subsequens |
| LPRP | Legitimatio Per Rescriptum Principis |
| M | Mother |
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