17th century biographies and autobiographies are also a good source of information about maypoles,morris dancing,etc.
Here are some relevant items I have found in these sources:

Samuel Clarke's The Lives of Sundry Eminent Persons (London,1683),
"The Life and Death of Mr. Thomas Wilson", p.35

"Maidston before Mr. Wilson's coming was a very profane Town:
They used to have Morrice-Dancing, Cudgel-playing, Stool-ball,
Crickets, and many other sports openly, and publickly on the Lords-day..."

Town: Maidstone
Shire: Kent
Month: Dec.
Year: 1634
Des: morris dancinq:
Council minutes.
Includes examination of the late mayor of Maidstone,
sent for on a certificate of the justices of the peace,
who had order to examine a petition of the young men of Maidstone
about Morris dancing.
performers: morris dancers
Type of MS: council minutes
MS Ref.: PRO SP 16/278/118
Location of MS: PRO {Public Record Office Calenders}
Printed Source: CSPD, Chas.I, vol. 7, p.378 {Calender of State Papers Domestic :Charles 1}
Record No.:45