Thank you, @GeorgeCroner for publishing FOIA response!
1/ George Croner quote: "Now, Barr is incorrect about the need to register as almost anyone who was 18 in 1968, like Barr, will attest." i.e, all males must register on their 18th birthday (more)
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archives.gov/foia/william-p…
The last 2 entries for Barr appear (to me) to be:
Jul 1971 => Status 1A
Jan 18 1972 => Status 1H (more...)
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sss.gov/about/return-t…
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