This Business Insider article says his father is a well-respected software entrepreneur:
http://www.businessinsider.com/inside-story-of-clinkle-2014-4?op=1
Questions
Who is Clinkle CEO Lucas Duplan’s father?
9 answers from the community
A· Apr 19, 2014
The name of that father? Albert Einstein.
A· Apr 19, 2014
Neno Duplan.
A· Apr 20, 2014
Thanks.
A· Apr 19, 2014
Still on these guys?
A· Apr 20, 2014
His dad immigrated afaik, he was from the middle east/far east. I think the family took different names, you can google his dad its Suq Madiq, I think he was born in US though
A· Apr 20, 2014
I love that SNL sketch.
A· Apr 26, 2014
His dad is from Croatia
A· Jun 19, 2017
Surname is Duplancic. He used Duplancic at Stanford and in high school.
A· Sep 24, 2020
High school: Miramonte High School, Orinda, California. Class of 2009