http://pec.lib.wvu.edu/record/P164901984-1996Echoes : a newsletter of the Friendship Hill Association. Serial. Printed Ephemera Collection has: v.3:no.3 (1984:autumn), v.4:no.1 (1985:spring)-v.6:no.3 (1987:fall), v.8:no.1 (1990:spring)-v.8:no.4 (1989, winter), v.9:no.2 (1990:summer)-v.11:no.3 (1992:fall), v.12:no.1 (1993:spring)-v.12:no.3 (1993:fall), v.13:no.1 (1994:spring)-v.14:no.3 (1995:fall), v.15:no.1 (1996:spring)-v.15:no.3 (1996:fall).Friendship Hill Association (Pa.)Friendship Hill National Historic Site (Pa.)--Periodicals.Friendship Hill Association (Pa.)--Periodicals.14256