Jacksonville made 11 3-pointers with four each from Darius Dawkins and White.
Dawkins finished with 14 points for Jacksonville (3-5). Josh Adeyeye added two 3s and scored 10 points.
Dawkins made three 3-pointers in the first four minutes of the second half for a 13-point advantage and the Dolphins led by at least nine points the rest of the way.
Andre Braziel led Florida Memorial, a NAIA Division II member, with 19 points on five makes from distance. Aluk Adub added 16 points.
Florida Memorial did not make a field goal over the final six minutes of the first half and Jacksonville closed on a 10-2 run for a 37-25 lead.