I think the Hyb. Per. in the 1941 reference for ‘Mabel Reed Prentice’ 1921 refers not to a Hybrid Perpetual, but a Hybrid Pernetiana. Once I change the classification, I think ‘Mabel Prentice’ 1923 could well be the same rose. But I have no proof. Apparent there were two ‘Dick Seddon’ and two ‘Opaline’ roses.