Jan Coenraad Visser, SV/PROG 4 - Parent Conflict

Oh dear, this looks as if it's got into a mess somehow!

Sorry, I don't have sources, or time to look extensively now (also still jet-lagged), but did just find these profiles, of a later vintage and domiciled in the Netherlands, which may or may not have something to do with the mix-up:
Akke Jans Visser-Tiesema
Coenraad Pieters Visser

And then further searching turns up these:
Jan Coenraadsz Visser, SV/PROG
Jan Coenraadsz Visser, SV/PROG
which look like duplicates?

Private User 's tree was merged in, but contradicts on the SV's parents. As you can imagine, I don't want to merge in any other trees until we have examined the sources for each the parents :-)

O no not again. This was sorted out less than two months ago if I remember correctly.☺

Are there sources for the parents, then?