Blooming Grove, Pennsylvania Dunkard Meeting House Blooming Grove Museum—piano built by Joseph Gross. Keys are made of animal ribs. Blooming Grove Museum—piano made by Christly Heim. Gottlieb Heim’s barn, Loyalsock. Landscape, Blooming Grove, looking toward Dunkard Meeting House and Museum. Blooming Grove from Quaker Hill. Blooming Grove Cemetery.