I am a descendant of Burch family from Masonville Township, Delta County, MI. They changed their spelling of their name to Birch by 1900 census. Adelia Ann Young married a George Burch who supposedly died and then she married a Henry Pfeiffer in Wisconsin. Adelia Ann Young disappears between 1850-1870 and from 1870 and 1900. I believe her family were followers of Jim Strang ( LDS off shoot) and were living on Beaver Island Michigan from 1850-1856. Some of her siblings were born there. I can find no info on the Birch's or Burch's. Please see public family tree and maybe there is a connection? Possibly plural marriage? I have no idea but Keziah Nichols was Adelia Ann Young's mother and she was also living in Masonville Township, Delta County, MI from 1900 until she died.