Tinkle Family (a missing link) Home Page

Am trying to locate a connection for a Robert E. Lee Tinkle born in Arkansas in December 1881. No information on the name of his father or mother, but he stated he lived with a family in Arkansas by the name of Montgomery. We can pick him up in the 1910 census in Hamilton County Texas and have a marriage license to Clara Rebecca Wood in 1904 in Sommerville Co., Texas. He had a half sister who died within a few years of his marriage to Clara. Don't know her surname.
We have a family reunion coming up at the end of May and would really like to find this missing link and tie this part of the Tinkle family with others.