Dear Lister; In doing the extractions for the Germans from Russia from the 1920 U.S. Federal Census you come across some really interesting facts. I hadn't realized until someone asked what the dates of the enumeration was that different States took the census at different times. I went back through the ones that I have done and found that Colorado did their's in January and Febraury; Nebraska in June; Washington in March through May; Montana in Febrary through April. That gives you a wide range of times when a family could be moving from one place to the other and actually miss the census taker all together. Especially if they moved from on state that took their census in the summer to a state that took theirs in the late winter. It also makes you wonder how many families and individuals were missed altogether because of this taking place. I also don't know when the Census began to be taken at the same time as it is now. Gene Jenkins Selah, WA.