Brad,
Robert J. Perkins married Miranda Timmons 24 Jun 1888 in Butler Co., MO. The license states that M. W. Timmons, father of said Miss Miranda Timmons, gives his written consent. Apparently he moved to Missouri between 1880 and 1888.
His son, Minas W. Timmons, is buried in the Hvam Cemetery in Butler Co., MO. His death certificate can be found at

http://www.sos.mo.gov/archives/resources/deathcertificates/

I also found the marriage license for Nannie Perkins and Oneal Palmer. They were married 22 Mar 1899 in Poplar Bluff, Butler Co., MO