Hello. Yes, SPRINGSTEAD/SPRINGSTED brothers married LETT sisters. The boys were from NY and the girls were IRE>CAN>IL . Their collective Family story is absolutely fascinating.
From 1988-2000, up to a good 60 hrs a week, I researched and documented these extended families. I have charted ''all of them & theirs'' thru the 1930s.
I lived in the 1847 Springstead schoolhouse in Adams Twp, LaSalle Co IL and took my research so seriously I made 3 trips to Ontario, CAN. to further my research them.
I compiled and donated 6 binder-books on them --it took that many to hold most of the material (and dozens of genea chart folders on their cousins & neighbors) to the LaSalle Genea Soc in Ottawa IL. In fact, I researched ALL of Adams & Northville Twps' residents c1839-1900 based on the 1870s plat, in which they (really) resided. So, WHAT DO YOU WANT TO KNOW??? Where...and WHO... are you from?? you can reply to me direct: Pamela.