The earliest reference we have (1933) for this 1930 rose says “white flowers turning pink with age”.
I suspect it should read: the pink buds turn white with age.
Can anyone comment please.

Got Maid Marion as a tiny rooting mid-summer, it grows fast & bushy & very healthy, but zero blooms for 1st year in a pot. Not sure if this is a once bloomer or doesn't repeat well ??