Could you post a link to the 1940 information, if you have it? If not, who was still in the household, did the ages match the 1930 census, etc. They must have been at or near the same location
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here is 1930 to make it easier for the others on this thread:
1930 Baltimore, Ward 15, renting at 1421 Mount Street
John, married 1st at 30, born in Virginia, parents also, laborer, coal yard, not a veteran
Priscilla, married 1st at 29, born in MD, parents also, laundress, private home
Claudie Bush, 4
John Bush, 9
Loretta Bush, 7
Liza Dorsey, 13, stepdaughter
Robert Dorsey, 11, stepson
all children born in Maryland
https://www.familysearch.org/ark:/61903/1:1:X3WG-4SY---------
1922 Baltimore City Directory
not listed, but there were people with *
1923 Baltimore City Directory
John* (Pricilla) Bush, driver, householder at 1421 n Mount
1924 Baltimore City Directory
John (Priscilla) Bush, laborer, householder at 1421 n Mount
[I am presuming that the asterisk (*) meant they were black, but I couldn't find it in the abbreviations in the front of the City Directory]
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birth date for son and Priscilla is still alive and on N Mount
WWII young man's draft registration
John Dennis Bush, born 23 July 1921, Baltimore MD
living at 1133 N Mount St
contact: Priscilla Bush, same address
race: Negro, brown eyes, black hair, 5'10", 150 lbs, mark on right side of body from operation
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Social Security Applications and Claims Index
Priscilla Bush
female, black, born 19 July 1895, Annapolis, MD
father: Clem Dorsey
mother: Betty Owen
Signature on SSN Card: M Kenchick
Relationship of Signature: Signature name differs from NH’s name.
Notes: Jan 1942: Name listed as PRISCILLA BUSH
[I don't know what the information about the signature means, I have never seen it before. Maybe she couldn't write and had someone sign it for her? I have no idea.]
Did she die in Jan 1942, or was that the date that she was applying for a Social Security card?