I am a little confused. If they lived in Illinois why are you putting your query in Indiana? I did find a Samuel Snider in Vermilion, Il in 1850. There were none in Indiana in 1850. 1850 United States Federal Census Name: Mary Snider Age: 44 Estimated Birth Year: abt 1806 Birth Place: Ohio Gender: Female Home in 1850(City,County,State): District 21, Vermilion, Illinois Household Members: Name Age Aseneth Snider 17 Charles Snider 7 John Snider 11 Margaret Snider 4 Mary Snider 44 Samuel Snider 9 Wesley Snider 2
1850 United States Federal Census Name: John Snyder Age: 12 Estimated Birth Year: abt 1838 Birth Place: Ohio Gender: Male Home in 1850(City,County,State): District 21, Vermilion, Illinois Household Members: Name Age Danl Snyder 5 Danl Snyder 45 Elizth Snyder 10 Jane Snyder 38 John Snyder 12 Rhoda F Snyder 2 Sarah Snyder 8
Civil War Pension Index: General Index to Pension Files, 1861-1934 Name: John B. Snyder State Filed: Indiana Widow: Elizabeth Snyder Feb 24, 1883, invalid Jan 12, 1920, widow
No John B is listed in Indiana in 1860 nor in Illinois. No Samuel listed in either place in 1860. This is the only John B I found in the Indiana death records. Indiana Deaths, 1882-1920 Name: John B. Snyder Date: 1 Aug 1886 Location: Union Township Age: 48 yr Gender: Male Race: White Source Location: County Health Office, Azalia Source Notes: The source of this record is the book HD-1 on page 70 within the series produced by the Indiana Works Progress Administration.
This Samuel was too young to be in the war.
1870 United States Federal Census Name: John B Snider Estimated Birth Year: abt 1839 Age in 1870: 31 Birthplace: Illinois Home in 1870: Blount, Vermilion, Illinois Race: White Gender: Male Value of real estate: View Image Post Office: Danville Household Members: Name Age John B Snider 31 Rachel Snider 34 Samuel Snider 8 Ester Snider 4 Anna Snider 3 John Snider 1