First given name of “Selina” from Church of England Baptism records for son found in May 2020:
Name: William Alfred Oliver
Gender: Male
Record Type: Baptism
Baptism Date: 1 Oct 1843
Baptism Place: St George in the East, Tower Hamlets, England
Date of Birth: 11 Sep 1843
Father: James Oliver, Carpenter
Mother: Selina Oliver
Register Type: Parish Registers

Maiden name pf “Hooper” from:
http://jo.warby.markingtime.bigpondhosting.com/p53.htm

Year of birth, marriage, and death, found in May 2020 from:
http://joannewarbymarkingtime.com/9ff0f5e4-f229-47a5-924d-a4e8f707a052.html