Jack Soltz is buried in the Jewish Gardens section of Resthaven Cemetery in Ponca City, OK.The sexton records indicate that he was born 9 April 1897, died 30 Sept. 1978 and was buried 3 Oct. 1978. Arrangements were handled by Grace Memorial Chapel Funeral Home, 2016 N. 14th St, Ponca City, OK 74601.
Also listed in the Grace FH index is a Clara Soltz who died 21 May 1960. However, she was buried in the St. Mary's Catholic Cemetery, so she may not be of interest to you.
I will be at the library next Tuesday and can check for the obituary then.