In 2014, I posted an inquiry concerning the ancestors for Frederick Cornelisse van Vliet (1663-1729) of Moordecht and Zoeterwoude: https://www.stamboomforum.nl/subfora/2/2/49529/0

Frans Angevaare found some information about some of Frederick's presumed ancestors and kindly posted some useful information.

Through Hogenda, I found J. de Jager's Krimpenerwaardse Geslachten, on pages 295-296 (which also can viewed here: on this website: https://hunter.home.xs4all.nl/Stambomen/Vliet_van/Vliet_van.html), on a family I maybe descended from:

Geslacht van Vliet. Haastrecht (Rosendaal, Land van Stein)
I. Mees Fredericks geb. ca. 1545 won. ROS
huwt ca. 1575 Marrigje Jans
kinderen:
Haasje Meesdr huwt 1624 Waling Jans
Hilligje Meesdr huwt 1624 Gerrit Jacobs → LvS
Jan Meesz van Vliet volgt II.
Willem Meesz geb. ca. 1580
Frederick Meesz huwt ca. 1605
Cornelis Meesz huwt ca. 1605
Ingetje Meesdr huwt ca. 1605 Gerrit

II. Jan Meesz van Vliet geb. 1577 won. LvS
huwt 1. ca. 1605 Barber NN
kinderen:
Jan Jans van Vliet volgt IIIa.
Frederick Jans volgt IIIb.
Annigje Jans huwt ca. 1630 Pieter Pieters
Neeltje Jans huwt ca. 1630 Leendert Wouters van Leeuwen → Sluipwijk
huwt 2. ca. 1625 Marrigje Cornelisdr van de Mije
kinderen:
Jan Jans jonge geb. ca. 1625
Barber Jans geb. 1628 huwt 1. ca. 1650 Aart Hendriks
huwt 2. ca. 1655 Arie Ariens

IIIb.Frederick Jans geb. ca. 1605 won. LvS
huwt ca. 1630 Aagje Cornelisdr
kinderen:
Jan Fredericks geb. ca. 1635
**Cornelis Fredericks geb. ca. 1635
Annigje Fredericks geb. ca. 1635
Barber Fredericks geb. ca. 1635
Ariaantje Fredericks geb. ca. 1635

**Cornelis Fredericks van Vliet married Claasje Leenderts Bruijn sometime in 1660, and they were the parents of Frederick Cornelisse van Vliet.

A footnote on page 295 shows Jan Meesz. (van Vliet), geb. 1577, in LvS, overl. tussen 12-5-1649 en 10-5-1654, tr. 1e Oudewater 4-9-1602 Barbara Jacobs; tr. 2e ca. 1620 Marrigje Cornelis.

A few questions.  While it was great this family was constructed, I must ask what are the sources that connect each generation and family together?  Concerning the footnote on Jan Meesz, I noticed a death date range between 12 May 1649 through 10 May 1654.  What is this based on?  What record?

I would sincerely welcome any assistance anyone may be able to provide to pinpoint the correct sources and records.

Thank you in advance.

Death range is usually reconstructed by the last date a person appears hiself alive (as a witness or a testifier or such) and the first date that he is obviously  dead (e.g. his widow is mentioned or his heirs). So there can be many different sources involved in those reconstructions. 

Unfortunately, no reference was given to a specific record which is why I posted the inquiry.  It seems like some folks produce extensive genealogies but fail to provide source citations.  A little frustrating, especially with this particular family.

I know, just don't kill the messenger who tries to explain how such dates are figured out. 

This one is not on you, Anne Marie.  I just figured I'd cast a wide net to see if someone with knowledge of either this family or with the archives in the municipalities I referenced would have some insights.  Thanks for your help.