One source has William Rankin and Myrtle Wilson the parents of 3 children:
James, b. 1894 in Mulberry, Bates Co., Missouri Andrew, b. 1896 in Mulberry, Bates Co., Missouri Isabel, b. 1898 in Mulberry, Bates Co., Missouri
But these children would have been born prior to the marriage of William and Myrtle.
The same source lists Myrtle's father as David M. Wilson. Myrtle
was born at Paxton, Ford Co., Illinois
, on 30 December 1871. She was the daughter of James Strong Wilson
and Susan Howard Dunnington
. She married William McKee Rankin
on 14 May 1903. Myrtle died on 13 July 1939 at St. Joseph, Buchanan Co., Missouri
, at age 67.