Talk:Helvetia, Pennsylvania

Add link and reference
https://en.m.wikipedia.org/wiki/Buffalo,_Rochester_and_Pittsburgh_Railway Killoh (talk) 00:24, 21 December 2020 (UTC)

Add link and reference
https://en.m.wikipedia.org/wiki/Cleveland_and_Mahoning_Valley_Railroad Killoh (talk) 00:33, 21 December 2020 (UTC)