Lizle an hour ago
It could be that in order to give him a single Indonesian name, they simply combined the names:
Soe - Soetoro
Barka - Barak
H - Hussein
Soebarkah
upvoted
I'm reasonably convinced the 'Soeb' came from 'Subud', which is an Islamic cult to which Ann Dunham and Loretta Fuddy (interestingly, and not coincidentally) belonged.
HF