Hi Vinz, Glad the information was some help. The data that I have was copied from the Massachusetts I.G.I. about 10-15 years ago. I imagine that it has been up-dated by now, so there may be some additional information to be found there. As you may know, the family connections in the I.G.I. leave something to be desired, so I don't have any further data on Joseph Gleason or Hanna Howard yet (by the way, on further inspection of my notes, it may be Hannah Haward). I'll be doing some research next week on vital statistics and will attempt to find birth, marriage and/or death records to flesh out this group a bit. The only other thing I have is strictly speculation at this point. The Joseph Gleason who married Hannah is recorded as Glesen for his marriage and the birth of Joseph, the son. Then he is recorded as Gleson for the birth of the daughter Hannah in 1745. The very next entry is as follows: Hannah Gleson m. Samuel Temple Nov. 13, 1751 Upton
Bearing in mind that of the 2,100 entries for Gleason, there were only 4 located in Upton in the 1700's, it is possible that this, the 4th entry, indicates that Joseph, Sr. died between 1745-1751, and that Hannah re-married. Divorce is also a possibility, but less likely in those days.
Anyway, if I can find anything further, I'll post it here for you. Let's just hope that Upton has published its births, deaths & marriages prior to 1850 like many MA towns have done.