The load data was chosen for both from Wikipedia, it was handy, and despite the reputation they have among people who don't use it, they are very rarely wrong.
Wiki told me the first .357 Magnum was the S&W model 27, in 1935.
right year, wrong gun!!
perhaps a minor error, but when they get little stuff wrong, how you do you know they get the big stuff right??
trust, but VERIFY!!
(and especially any and all loading data!!)