Sarvis Tree;
Amelanchier (/æməˈlænʃɪər/ am-ə-LAN-sheer),[1] also known as shadbush, shadwood or shadblow, serviceberry or sarvisberry, or just sarvis, juneberry, saskatoon, sugarplum or wild-plum,[2] and chuckley pear[3] is a genus of about 20 species of deciduous-leaved shrubs and small trees in the Rose family (Rosaceae)
Above is from Wikipedia.
The Saskatoon seems to be from the Northwest & the Sarvis from the East. They are indeed the same family, likely a slight variation or different subspecies.