Protestant Writings against the Medieval Church and Liturgical DaysThese resources ar highly biased and very inaccurate regarding the origins of the Medieval Church liturgical season and days.
[available with an account]
[in this online edition of Stopford ]
[web page at covenanter.org]
This is from the Reformed Presbyterian Church (Covenanted)
Increase Mather was a rabidly anti-Catholic Puritan responsible for burning witches in Massachusetts.American Puritan Increase Mather's 1687 A Testimony.. ch 3 section 4 claims "Incarnation of Christ, was in the seventh month." The argument he makes is against a Dec 25th Christmas. By "incarnation" Increase Mather seems to mean "birth" rather than "conception."
[at the internet archive]
[ at philologos webpage version described as a Messianic Christian group emphasizing what they think is significant about what they believe is Jesus' Jewish background]