Rosina was born to Laomi Holcomb and Patience Pelton Tiff. She grew up with her half-brother Reubin James Tiff and her siblings Wardsey Searle, Austin, Lucretia, George D.,John, Patience and Lucy Holcomb.
Rosina married Aaron Baker on June 4th, 1859 in Jefferson Co. WI. Aaron Baker, b. Sept. 29, 1837, was the son of Thomas Baker and Mary Ann (?).
Two known children were born to them, Lucetta and George Baker. The US Census, in 1880 showed the family living in La Grange, Lorain Co. OH. Aaron was a farm laborer and they had 2 children at that time.
Wardsey Searle Holcomb
Lucetta Holcomb Welcher
George D Holcomb
Lucy Holcomb Newton