I am from Texas and my father, now deceased, did extensive kilman family research, which I believe my uncle johnny has now (his email is firstname.lastname@example.org) anyway, my family lineage has robert kilman and his wife sara coming from or missouri to texas in the 1850s or there abouts. his father, james kilman was born in Maryland in 1784 and ended up in kentucky until his death in 1848. my sister has a diary written in may 1883 from nathaniel barnett, who was the father n law of robert kilman. (her address is email@example.com) Henry Kilman was in Maryland in 1757 and John Kilman also was in Maryland in 1720. All these men are my direct paternal lineage. After John Kilman of 1720, things get fuzzy. There are confirmed arrivals of Kilmans in America (Simon Kilman 1662, Thomas Kilman 1663, and William Kilman 1665 and another Thomas Kilman in 1678 (probably Thomas Jr)...In "The Surnames of Scotland" published by the New York Public Library, Kilman is listed as a variant of Kelman. The actual meaning is Man for Kiel. Kiel is in Germany. It seems from what my father told me, that how ancestors left Germany and migrated to Scotland in the 12th century and then migrated to the US in the 17th century. The actually old spelling is Kielmann. This implies also that the original origin of our kin and our last name may in fact go back 3000 years ago, with the first Kielmann being Jewish. Of course, most of this is pure speculation, with only clues about what the true origin is.