BFA Senior League was created in 1990.
According to Soccerway.com the top division is the BFA Senior League, so I am guessing the BFA stands for Bahamas Football Association and this is the answer.
Leicestershire Senior League was created in 1896.
South Wales Senior League was created in 1991.
National Senior Classical League was created in 1960.
Staffordshire County Senior League was created in 2005.
Essex Senior Football League was created in 1971.
Gloucestershire Northern Senior League was created in 1922.
Carillon Senior Hockey League was created in 2003.
Hertfordshire Senior County League was created in 1898.
Avalon East Senior Hockey League was created in 1991.
Newfoundland Senior Hockey League was created on 2011-09-10.
Ulster Senior League - association football - was created in 1986.