I made a subset of HadCRU3 to cover the continental U.S. and compared it to the USHCN-2000 version.
Next here is a comparison of the USHCN 2000 version (digital data downloaded from John Daly, but matched to figure in contemporary press release) to CRU. The CRU comes as monthly data – I made an annual average and then zero-ed on 1951-1980 to match GISS 1951-1980 centering. (In passing, CRU is supposed to have 1961-1990 centering, but I couldn’t replicate this at all!) The blue histogram shows the difference between HadCRU3 and GISS 2000. The maximum negative delta in the 1930s is -0.35 deg C and the maximum positive delta is 0.28 deg C. In HadCRU3, the record year remains 1934.
So as between CRU and Hansen’s crowd, it looks like Hansen’s crowd is adjusting things more. It would be nice to see what CRU is doing differently. But hey, they’re the Team and I guess we’ll never know.