No.
Why wouldn’t he mention his family in Hawaii?
1. He doesn't want to acknowledge to his friend and benefactor in Kenya that he has another wife.
2. His father had already expressed disapproval about this.
3. He never seemed to take his relationship with or obligations to this second wife and family very seriously and obviously intended to leave them behind when he traveled to Harvard and later back to Kenya.
Barak Obama was never married to Stanley Ann Dunham.
There is no marriage license. There is no marriage certificate.
There was no announcement, no wedding, no preacher/imam, no guests, no bride’s maids, no ushers, no flower girl, no ring bearer, no wedding cake, and no pictures.
Michelle Obama has been quoted and captured on video saying, about Onbama’s mother, she was “very young and very single when she had him.”
http://www.theobamafile.com/_exhibits/VeryYoungVerySingleQuote.htm