Sophia is at the home of her brother, Mark on the 1880 census. She is listed as single (rather than widow) in 1880 census so perhaps she divorced from wolfinger.

1880 census Leitersburg, Washington, Maryland, p 217:

Mark Z. POE Self M Male W 40 MD Us. Store Keeper MD MD
C. Virginia POE Wife M Female W 34 MD Keeping House MD MD
Sophia POE Sister S(ingle) Female W 53 MD MD MD

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Source Information:
Census Place Leitersburg, Washington, Maryland
Family History Library Film 1254516
NA Film Number T9-0516
Page Number 217A