The cemetery is divided into three parts: Division 1 (north side), east of Brighton Road and north of Marshall Avenue; Division 2 (south side), east of Brighton Road and south of Marshall Avenue; Division 3 (west side), west of Brighton Road and south of Island Avenue.

[2] It was founded as Mount Union Cemetery in April 1846, by members of the First Associated Reformed Presbyterian Church of Allegheny.

"[3] In the leadup to the Battle of Gettysburg, Pittsburgh was under perceived threat, and part of the cemetery was commandeered in June 1863.

[4] Located on high ground and just downstream of where the Allegheny and Monongahela Rivers merged to form the Ohio, more than two miles of defensive fortifications were built in three weeks, "from Union Dale Cemetery to Troy Hill.

"[7] Union Dale Cemetery contains the graves of eight Confederate soldiers, who died in Pittsburgh as prisoners of war.