Geo. Washington Adams PA, HELP Dead end!

Geo. Washington Adams, husband of Eliza Jane Colbert - Children, Clarence, Clyde, Samuel, Milton, George, William, Myrtle & Gertrude. Allegheny and Cambria Counties - Johnstown, Morrellville,etc. Eliza born 1861 - oldest child was William - Clyde born 1895.Clyde married Margaret Evans Roderick, Gert married Bill Martin - Myrtle married Charlie Cowan.Clarence married Ella, Samuel married (?) daughter Charlotte, William married Sarah.George died in WW1.Need help with Geo and Eliza - at dead end! Intersted in any related surnames: Adams,Colbert, Evans, Roderick, Martin, Cowan, Marsh all known to be in Pa late 1800's to presnt (those living, of course!)lol