HAUPPAUGE, N.Y. – Island FCU on Tuesday announced Bob Dethlefsen, its president since 1980, is retiring from the $800-million credit union at the end of the month.
Dethlefsen, who joined the credit union in 1977, grew it from a $17-million institution with one location to one with six branches.
A well-known figure in the credit union movement, Dethlefsen served on the board of NAFCU, was a founding director of Card Services for CUs, and initiated the advisory board for XP Systems.








