This borough was incorporated June 9, 1875. It had previously been separated from Lower St. Clair, in 1869, to form part of Allentown borough, a portion of which was consolidated with the city of Pittsburgh. Thus dismembered, the remaining portion became a part of the township until separately organized as above stated. The name is that of a prominent family of the vicinity. The population was 564 in 1880, but has largely increased since that date. There are no manufactures or other industries. The postoffice of Beltzhoover was established in September, 1882, by the appointment of Eliza Ricketts, who was succeeded by Elizabeth Ruckert in November, 1882, and Caroline Walters in September, 1885. The borough limits include a small cemetery.