I got all the initials by using said generator. I guess you all know what to do here.
LN: Begins with the letters either A or G or Y
H/SO: E K
W/SO: S B
D: T A S
S: N G K
D: E S O
S: S Q L
D: V S F
S: D R A
D: R S L
S: K S S
D: B S I
S: G K J
Have fun. Not judged.