""Will Alderman, cross between two dropmore rugosa hybrids, foliage soft, light green, rugose, bush to three feet; flowers double, cup shaped of H.P. form, fragrant, deep clear rose pink produced throughout the season. Introduced 1949."

Dr Frank Leith Skinner papers
Province of Manitoba Archives

Henry Kuska reports on the forum of rosehybridizers.org that Will Alderman appears to be diploid.

'Will Alderman' is an underrated Rugosa and should be grown more often. However, it's virtually unavailable from garden centres. At present it can be obtained From Brentwood Bay Nurseries, located near Victoria, B.C.

"Will Alderman - hybrid rugosa
Height 3-4 feet. Typical rugosa bush and foliage. Flowers large, rose pink, of hybrid perpetual form. Much better than Hansa. Produces freely all season, sets seed. Very subject to chlorosis, otherwise it would be in my top ten."
Walter Schowalter notes 1985