I'm wondering if this could possibly be them - though the last name is funky.
"United States Census, 1880," database with images, FamilySearch(https://familysearch.org/ark:/61903/1:1:MWV4-6DP : 16 July 2017), Elias Gromsk, Shenandoah, Schuylkill, Pennsylvania, United States; citing enumeration district ED 200, sheet 507A, NARA microfilm publication T9 (Washington D.C.: National Archives and Records Administration, n.d.), roll 1192; FHL microfilm 1,255,192.