I would say that, if this man is F’s father, Margaret can only be his stepmother and that this is a second marriage. Would have to see their ages on a marriage certificate to be sure: http://www.cyberdriveillinois.com/departments/archives/marriage.htmlhttp://www.cyberdriveillinois.com/departments/archives/marriage.html (on how to obtain a copy; you probably know this or already have it). The son F. was born sometime between 1842 and 1845. I think the marriage date is wrong.**[See 1860 Census, below.] Let me try to locate Margaret Robinson—it may say something. Well, here they are in the 1880 census—
Name Relation Marital Status Gender Race Age Birthplace Occupation Father's Birthplace Mother's Birthplace John USHER Self M Male W 60 ENG Carpenter ENG ENG Margret USHER Wife M Female W 54 ENG Keeping House SCOT ENG Census Place Aurora, Kane, Illinois (from familysearch.org)
****************** U.S. 1860 Census (I cannot find the 1870):
**So, here, the ages differ for the parents from those given in 1880. Did they simply marry later with children, or is she a second wife? On the 1860 census, if a second wife, Minnie would be their child and the other two older children her stepchildren. But one doesn’t have enough info. to guess any further; anything could be the case. Anyway, here is Frederick with the family two years before he enlisted, where he lists himself as a farmer. In 1880, however, and in the county next door, his father is listed as a carpenter. No reason this can’t be so: son has died in the war, father sells farm, moves.
Here is an interesting side point: If they had a farm in Danby, DuPage County, and moved to Aurora, Kane County, after the death of their son Frederick in 1863, F. would neither be buried in Danby nor in Aurora; you can see why. Untimely regarding a move. Further evidence that F. is probably buried in Gettysburg.
The daughter Minnie Usher marries in Kane County: http://genealogytrails.com/ill/kane/MarrBas-Beb.htmlhttp://genealogytrails.com/ill/kane/MarrBas-Beb.html BATTLE, C S / USHER, MINNIE/04/11/1878 She is 21. Married a fireman from Massachusetts and they lived in Aurora for the 1880 Census: Name Relation Marital Status Gender Race Age Birthplace Occupation Father's Birthplace Mother's Birthplace Charles BATTLE Self M Male W 23 MA Fireman MA MA Minnie BATTLE Wife M Female W 21 IL Keeping House ENG. ENG. Census Place Aurora, Kane, Illinois
..and their deaths: BATTLECHARLESSM/WUNK0000371 1940-07-22 KANEAURORA-- BATTLEMINNIEF/WUNK2450128 1926-03-10 KANEAURORA26-03-11
I see no “Janna Usher” (from the 1860 Census) anywhere; many transcription errors made in censuses.