Mary was born about 1932. She passed away in 2009.
1940 US Federal Census: https://www.familysearch.org/ark:/61903/3:1:3QS7-L9M1-WQS8?i=34&cc=2000219
John was born about 1910. He passed away about 1980.
D > Dwight | R > Rose > Mary (Dwight) Rose