J. H. Nicolas writing an article called 'What stories are behind the new flowers?' in House & Garden magazine (October 1934, pages 64 and 65) gives, in a pedigree diagram, the parentage of 'Lady Alice Stanley' as 'Mme. Caroline Testout' x "Hybrid Perpetual (name lost)". I posted the article with the recent comment under 'Charles P Kilham'.

The striking appearance of the opening bloom of 'Lady Alice Stanley' in the photo from 'The Gardeners' Chronicle' of 26th Sep 1908 made me immediately recall the similar appearance of the bloom of 'Margaret McGredy' in the photo from 'The Garden' of 6th Oct 1923, enough to make me wonder if they could be closely related. 'Margaret McGredy's pollen parent isn't known but its seed parent, 'The Queen Alexandra' Rose and the other two are all from Sam McGredy III, and I wouldn't be surprised if 'Lady Alice Stanley' featured in his breeding programme.

Maybe it's my imagination but I also look at some of the photos of 'Lady Alice Stanley' and see some of the characteristics of 'Peace', although having read all the confusion over its parentage I'm not sure now how closely 'Peace is related to 'Margaret McGredy'.