This John Talcott is the father of three New England immigrants--John Talcott (Talcott-3), Rachell (Talcott) Steele (Talcott-6) and Sarah (Talcott) Wadsworth (Talcott-7).
The 1604 will of John Tailecot/Tailcot was "copied from the Register of the Prerogative Court of Canterbury in 1849, at the request of S. V. Talcott"; he published a transcription--see Sebastian V. Talcott, Talcott Pedigree in England and America from 1558 to 1876 (Albany: Weed, Parsons and company, 1876), 14-19 (John Talcott), at 15-19; digital images, InternetArchives.
Citing "Hayes, 6," Henry F. Waters published an abstract of the will, see "Genealogical Gleanings in England," The New England Historical and Genealogical Register, 50 (1896):134 (John Tailecot); digital images, Hathi Trust.
I'm hoping to learn if the will is extant.
Thank you for any assistance you are able to provide. --Gene