I have some information that may be of some assistance. I have a ancestor named Catherine Minkler, b. about 1764, married Asa Fleming in West Stockbridge, MA, 1n 1782.They moved to Standbridge Township, near the town of Bedford, Missiquoi County, Quebec, by 1811.Catherine's sister, Sophia Minkler) Murray, and brother, Baranabas Minkler moved in to the same area.There is another brother, Jededia, but it is not known if he moved to Canada.
There is also a record of a John Minckler witnessing a marriage in 1831 in the same area.
Have you tried checking the web site of Marlene Simmons?Just Google her. She has the most extensive records of that part of Canada. She has a quick free search that will list the type of records she has for your persons name.You can then order a transcription of the record.