thanks for the info, George Henderson & Elmore

San Francisco Folk Music Club (US)- founded 1948
Bush Music Club (Aus) - founded 1954 - headed to 60
Topic in Bradford (UK) - founded 1956 - 55 in 2011
The Folksong Society of Greater Boston - 1959
Swindon Folksingers Club (UK) - founded Jan 1960 - 51 years old
Stockton folk club (UK) - founded 1962 - 50 next year
Birtley Folk Club - also founded 1962 - also 50 next year
Herga (UK) - heading to 50 in a couple of years
Southport's Bothy Folksong Club (UK) - 46 later this month
Folklore Society Of Greater Washington (US) - 'only' 45½
Croydon Folk Club (UK) - founded 1967 - 44 in 2011
Calgary Folk Club (Can)- founded 1972 - 40 next year
Somers Traditional Folk Club (UK) - just celebrated 30 years