(6 Jun 1966)  
 
Personal corresondence from Robert Erskine to Walter Schowalter:
I think I told you that Beauty of Leafland was from double white altai pollen. Actually it came from seeds when I used mixed pollen on all the roses. I had forgotten that pollen of Haidee was also in the mixture and concluded that Dble Altai was the only one that could be the pollen parent. The waxy petals and tall growth make me think now that it must have some R. Laxa strain in it. Incidentally I got more interesting seedlings when I gathered pollen from every rose that could be a good parent and mixed it all in one dish. It is also time saving but you have to guess what the pollen parent was and in some cases seedlings are so different from both parents that even guessing is impossible. But you might make some crosses that you wouldn't think of by this method. I intend to keep track of the pollen parent in only a few cases this summer. I also have many roses that I want to cross planted close to each other so the bees can do the hard work.

(11 Oct 1968)  
 
Correspondence from Henry Marshall to Walter Schowalter:
Thank you for the report on Cuthbert Grant rose. When I saw your article in the Prairie Garden I thought you would be interested in this new variety. I am enclosing the description we prepared for distribution. As you will note, one of its parents was Crimson Glory. This was pollinated with a sibling of Assiniboine and the resulting seedling was crossed to Assiniboine. In the first cross from Crimson Glory care was taken to use a plant that was an actual hybrid. Some non-hybrids are usually obtained from such crosses. While they may be good roses, they could not carry any character of the supposed male parent.

(1985)  
 
Walter Schowalter, Alberta Canada notes :
Dr. F.L. Skinner - Joanna Hill x altai. Not completely hardy, and not a heavy bloomer. Blooms once. Nevertheless, this is one of the choice beauties, worth growing if there is room. Blossoms large, semi-double pale amber yellow, with petals of good texture, opening hybrid tea form. Tends to open and bleach as it ages, but it is still one of the best.

(1985)  
 
Walter Schowalter, Alberta Canada notes :
Gay Centennial - R. gallica seedlling. Grows to 8 feet tall, a very hardy bush with attractive foliage. Blossoms good size, semi-double, pale pink. Blooms once, sets seed. Well thought of at Brooks.

(27 Jul 1964)  
 
Personal correspondance Robert Erskine to Walter Schowalter:
I have found that the George Will rose is a good parent, too. But it is hard to get many seeds from it. I had one seedling of it that bloomed at 3 months from seed, but its excessive blooming plus mildew caused it to die out.

(26 Mar 1965)  
 
Personal correspondence Robert Erskine to Walter Schowalter:
I have been told by other experts that the Harison Yellow will not get seeds from pollen of native roses. Yet I am reasonably sure that one seedling here is an Harisonii x R. acicularis cross. I suppose such cases could be called amateurs luck.

(1960)  
 
Walter Schowalter notes ca 1960 :
Hayter - R. arkansana. Found by WHS [Walter Schowalter] on dry hillside 2 miles S.E. of Hayter. [Alberta - Canada]. In wild usually below 15 cm, under cultivation up to 30 cm. No plants available for description. buds white with pink stripes, opening pure white. Petals up to 15. Twice blooming.

[Brackets mine - Margit Schowalter]

(1985)  
 
Walter Schowalter notes:
Jean - Seedling of Hazeldean - Simonet. A low growing, hardy, compact bush, with double, well formed amber yellow blossoms. Not really a heavy bloomer, but produces through the season. Sets no seed, and does not sucker. Have been unable to supply request for plants. Mine is grafted on a Kamschatka root from scions received from Mr. Simonet years ago.

(1973)  
 
Walter Schowalter notes 1973:
"R. arkansana - 'John Allen and 'Woodrow' The latter discovered by Miss Alice Hunt of Woodrow, Sask, the former by John Allen, address unknown. These are typical arkansanas, lower growing than average but with up to 60 petals. Would be valuable ornamentals if they did not sucker so much. 'Woodrow' is a stingy breeder, but I have taken some seed from it. John Allen is somewhat more fertile.

(1985)  
 
Walter Schowalter notes:
Louise Bugnet - hybrid rugosa. A dense, very shapely globular bush, not much over three feet tall. Buds are striped with red, but blossoms open pure white. These good sized, neat, double roses are produced all summer. My favorite white rugosa hybrid.