Mary Arvellia Rinehart is the daughter of Robert Lauren Rinehart (Sr.) and Lorene Mary Just. She was born in 1958 in Texas.

In 1978, she married Milnor Hanly Oswald in Texas. They divorced in 2002. He is the son of Thomas Hanly Oswald and Minnie Oal Bear. He was born in 1955 in Texas.

Children of Mary Arvellia Rinehart and Milnor Hanly Oswald:

1. Lani Lorene Oswald was born in 1983 in Texas. She married in 2004 and divorced in 2009.
2. Seth Hanly Oswald was born in 1987 in Texas. He married Allison in 2007.