I just noticed something interesting today. The 1930 US Census asked people at what age they first got married. Here are the answers for my great grandfather William Solle and great grandmother Flora Sorenson Solle:
William and Flora got married in 1910, which is verified by their marriage certificate. In 1930, Flora was 42 and first got married at age 22. That matches up with the date of her marriage to William in 1910. However, William is 65 and first got married at age 42. That works out to be 1907, which is not when he married Flora.
Census information isn’t particularly accurate or exact. However, that’s intriguing enough that I now am going to start looking for possible records of an earlier marriage. I may have additional relatives I didn’t know about.