Joe
Feel free to point out any other changes or mistakes.
Merion East (Wilson/Committee 1912, Wilson/Flynn 1916)
Merion West (Wilson 1913)
Gulph Mills (Ross 1916)
Huntingdon Valley (Original?, Ab Smith 1909-1916 and probably before and possibly beyond). The Baederwood course attributed to Colt/Allison was largely already there prior to their arrival.
Pine Valley (Crump/Colt 1913-1918)
Whitemarsh Valley (George Thomas & Samuel Heebner 1908, internal changes through teens, likely by Heebner...still trying to pin down Ross revision dates)
Torresdale-Frankford - George Sayers 1915 (9), Donald Ross 1922
Llanerch CC (Findlay) - B.F. Lewis/George Lindsay 1901, Alex Findlay 1916 and again in 1928
Cobb's Creek (Wilson, Smith, Klauder, Crump, Meehan 1916)
Lulu (J. Franklin Meehan/Warren Webb 1912 (9), Donald Ross 1919
Sunnybrook (Ross but built by Samuel Heebner and George Thomas)
Old York Road - Jimmy Laing 1910, Tillinghast revisions 1914
CC of Atlantic City - John Reid/HJ Tweedie 1897, Willie Park 1899...I believe Flynn's work was 1923
Cedarbrook (Tillinghast 1921)
Philmont (South) - John Reid 1907-08, Hugh Wilson/Henry Strouse 1914
Bala - Willie Dunn 1901, Willie Tucker 1903
Philadelphia Cricket - Sanders Handford 1895 (9), Willie Tucker/Samuel Heebner 1898, Donald Ross 1915
Philadelphia Cricket (New) - Tillinghast 1922
DuPont (Ross) - I don't believe this course existed in 1922.
Overbrook (Ross) I don't believe I've heard this attribution prior.
Seaview - Hugh Wilson 1913 (18 - same as today's routing), Donald Ross/Wilfred Reid/William Connellan 1916 (additional bunkering)
Lancaster - Not verified but I believe J. Harold Wickersham/George Franklin 1913, followed by Flynn 1919 through the rest of his life.
Ashbourne - J. Franklin Meehan 1922
North Hills - J. Franklin Meehan 1913, Hugh Wilson/Ab Smith/William Flynn 1916
Aroninmink - Tillinghast/Klauder/Calvert 1913-15 with a hole or two advised by Vardon/Ray during a visit.
Springhaven - Ida Dixon 1903, HH Barker