Issac F. Posegate 1802-73, was born in Highland County Ohio. Quaker Stock, His sons Winfield and John were gunsmiths.
Issac apprenticed to James Clark of lebanon Ohio (1825).
1830 Issac was in Jefferson County Indiana, listed as a gunsmith.
1840 Issac Posegate was in Missouri. He died in ST. Joseph Missouri in 1873 (Ohio Gunsmiths & Allied Tradesmen by Donald A Hutslar)
1850 John Posegate FT. Des Moines Iowa. (sellers)
William Posegate, ST Joesph & Marysville Missouri, 1869, 1876, 1889 . (sellers)
Winfield Posegate, born 1842 died 1895. Gunsmith, St Joesph Missouri.
I wonder if Winfield and William may not be the same person??