[Hypo]

what you are talking about is the "manual" for stats. Most states used the same BC format and "race" information to fill in the BC in 1961, I think there were only 5 or 8 that did not use the format. Here's the FR thread and the documentation. http://209.157.64.200/focus/f-news/2302882/posts http://www.nber.org/vital-statistics/historical/nat61_1.CV.pdf

[little jeremiah]

Thanks, I’ll look at the thread.