My third great aunt Lillias Jane Alston was born in January 1838 to John Alston and Lillias Johnston, their third child, second child born in Pennsylvania, and first daughter. Her youngest sister, Marion Helen Alston, is my second great-grandmother.
In about 1877, Lillias Jane married her first cousin Archibald Alston as his second wife. He was a widower with several children. Archibald and Lillias Jane had one son, Walter McHendry Alston, born in June 1879.
Archibald died in 1905 and Lillias Jane (Alston) Alston died in Pittsburgh (North Side, the former Allegheny City) on June 25, 1911. I found a lovely obituary for her in The Pittsburgh Press.