- Arend Arends
- Bakker Family - My grandfather and great-grandparents emigrated from Holland in 1903 and settled in Iowa in the Grundy and Butler County area. - Barbara
- Bigelow Watch Fob
- Boekhoff Family - My family is from Grundy County. Our origins have been traced back to Ostfriesland to a town called Bunde. By the way, my mother was one of 21 children (all the same father, but two mothers - one had six, the other had 15). I don't have a tidbit from the newspaper, but the 21st child was born in 1937. - Penny
- Janssen Family
- Severance Family
- Loren & Barbara Toomsen Family
Personal websites of researchers with family ties to Grundy County. If you would like your family link/data added, please contact me and I will add it.