Because it has been a year that you postedI will just say.. Yes James J. and Mary Hoofnagle Goodpasture were tha parents of Mary Clyde Goodpasture. Mary Hoffnagle had died before the 1880 census and Mary was living with her maternal grandparents, Jacob Hoffnagle. her brother Clarence is listed in the 1880 census in both households.
To see info on Mary :
Census Place District 81, Marion, Smyth, Virginia Family History Library Film 1255390 NA Film Number T9-1390 Page Number 8D Jacob W. HOOFNAGLESelfMMaleW68PACarpenterPAPA Ann E. HOOFNAGLEWifeMFemaleW55VAKeeping HouseVAVA van D. HOOFNAGLESonSMaleW23VAWorks On FarmPAVA William B. HOOFNAGLESonSMaleW19VAClerk In StorePAVA Laura M. HOOFNAGLEDauSFemaleW16VAAt HomeVAVA Maryan GOODPASTEURGDauSFemaleW7VAVAVA Clarence GOODPASTEURGSonSMaleW9VAVAVA
Source Information:1880 Census Place District 81, Marion, Smyth, Virginia Family History Library Film1255390 NA Film NumberT9-1390 Page Number8D
If you need/want more info on this family email me. Lois GOODPASTURE BURDICK