- Books about Westborough History (Westborough Archive) – A bibliography of books about Westborough history.
- Historical Records of the Town of Westborough: Administrative Documents, 1724-1929 (Digital Commonwealth) – Digitized historical town records from Westborough, some of which are from the time that Parkman was alive. The collection also includes Relations of Belief and Confessions, 1763-1785, n.d. and other church records.
- Town Records (Digital Reel) – Digitized microfilm copy of Westborough Town Records that cover the years when Parkman was alive.
- Vital Records of Westborough, MA to the end of the year 1849 – From the Internet Archive.
- Vital Records of Westborough, MA to the end of the year 1849 – From the Massachusetts Vital Records Project, administered by John Slaughter.