Hendrick was a son of the Haarlem tailor, Harmen Jansz.
van Kuyndert (from Kuinre, Overijssel).
The family was possibly Mennonist; Hendrick married to Janneke Jansdr.
[1] According to Houbraken, he was a painter of conversation pieces.
[2] According to the RKD, he was a pupil of Willem Claesz Heda.