I have a copy of an index for the Jay County Marriage Records 1850-1920. They list two marriages for Benoni/Benonia Wells. The first is to a Rachel Baker on Apr 21, 1874. The second is to Ida R. Davis on Feb 10, 1887. Additional Jay Co. records on the second marriage state that "Bennonia" has been married 3 times, was born in Ft. Recovery, Mercer Co, OH, and resides in Dunkirk, Jay Co, IN. His father was also "Bennonia", mother not named. Although Benoni's pension records show a discrepancy in the date of birth, they do list Ida Davis as his wife in 1898 with children Troy (15), True (14), Frank (9), Daniel (7), Mary (6), Murtia (4) and Benonie (18 mo.). Are any of these the adoptions you asked about? The pension records ask about previous marriages, and he answers yes, but the name is hard to make out, but could be Josephine, died 1884.