Also Brownson, Brunson395

Probate Records, published in 1902, documents some of Bronson's history. The data follows as it appears in the original transcription.
Page 59-60.

Wyatt, John, Haddam. Invt. £154-17-10. Taken 7 September, 1668, by Abraham Dibble, Richard Joanes. The children: Mary, age 20 years, married; John 18, Hepzibah 16, Dorcas 13, Sarah 9, Joanna 5, Elizabeth 3, & Israel half a year. Dist: To the Widow, £35; to John, Eldest son, £14; and to the other seven Children, £8 apeice.
Court Record, Page 81—5 November, 1668: Adms. granted to Mary, the Relict, and John & Richard Bronson are desired to assist her.

Mary, the relict, was evidently unable to handle the estate herself: it is uncertain from this data whether the Bronsons were appointed by the Court or if they were affiliated with the widow.
Later in the same document, John Wadsworth describes his sons; inheritance and identifies each plot by the previous owner.

My Will is my son John should have the Lott I bought of John bronson, with the hous that stands upon it, as part of his portion.

While the document does not contain data about Bronson's will, it is obvious he was a significant part of the community.
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SOURCE
Manwaring, Charles William. A Digest of the Early Connecticutt Probate Records by Charles William Manwaring. 1902. Pages 263, 514. Accessed 10 Jan 2008 <http://books.google.com/books?id=f_8LAAAAYAAJnwaring>.538

US & Int’l Marriage Records shows marriage taking place in Massachusetts. No more info than that. Elsewhere, it says 1626 in England, but that record shows birth year of 1604 for Francis and 1645 for John, with John being born in CT.537