Jan Romkes Sekema is gedoopt op 04-11-1684 in Groningen. Jan is overleden omstreeks 1732 in Grijpskerk. Jan is weduwnaar van Maria van Greven (ovl. vóór 1718), met wie hij trouwde op 23-09-1714 in Grijpskerk.
(1) He is married to Maria van Greven.
They were married in church on September 23, 1714 at Grijpskerk.Source 1
(2) He is married to Griettie Simens Bennema.
They were married in church on October 9, 1718 at Niezijl.Source 1