Hi Kendra.

Did the obituary say how old she was at her time of death? What were the names of the other brothers and sisters listed in the obit?

In 1930 there is a Carrie Foster listed in census for Birmingham with son Andrew J:

Name: Carrie Foster
Home in 1930: Birmingham, Jefferson, Alabama
Age: 21
Estimated Birth Year: abt 1909
Relation to Head of House: Wife
Spouse's name: Melvin
Occupation:

Household Members: Name Age
Melvin Foster 24 husband (head of household) married at age 20
Carrie Foster 21 wife married at age 17
Melvin Foster 3 9/12 son
Andrew J Foster 1 6/12 son
Frank Cummins 18 - brother in law
Tommie Cummins 16 brother in law

So it looks like her maiden name was Cummins (or Cummings if this is mis-spelled)

I only see one listing for Birmingham in the death index with the same name but the date is listed as 1980 - might be her:

Name: Carrie Foster
SSN: 424-44-0817
Last Residence: 35222 Birmingham, Jefferson, Alabama, United States
Born: 18 Oct 1907
Last Benefit: 35211 Birmingham, Jefferson, Alabama, United States
Died: Dec 1980
State (Year) SSN issued: Alabama (1952-1953 )

Hope this helps,

Denise