Hi all, I am struggling to identify a rose, I have been told it is de la grifferaie and Dr pecs, what defining features can a call apon to set them apart, cheers.

Another study name in Australia is "Lismore".
The rose from everywhere.

REPOSTING GREGG LOWERY'S COMMENT FROM FACEBOOK, JUNE 2020:

(I didn't want this to be lost.)

Gregg Lowery Anita, ask anyone in Australia about our conversations regarding ID. We declared a mutual understanding that when we offered a name for a rose, it was not with authority of experience (none of us was born a hundred years before and could provide certainty), but with the name we had received a rose under. That was it. The unsolved mysteries are just that. Dr. Eugene Peck was a physician who lived and worked in Oakland and was among the founding members of the Heritage Roses Group. He was retired and a volunteer at the Oakland Public Library, and obsessed with gathering information from books and periodicals that dealt with roses popular in Oakland in the late 19th century. He found many roses in old Oakland gardens including his "12th Avenue Smoothie", so called in reference to the mostly thornless stems of the rose. We received this rose under many names including Gaspard Monge (cuttings from the rose originally planted in the San Jose Heritage), as well as from Roseraie de l'Hay and Schultheis. We saw it everywhere in Australian as well as NZ. What is so important about this rose, in my opinion is that it is so beautiful, with crepe-like texture to the petals and a pale green eye, or 'pointed' as Graham Thomas described it—what Ruth Knopf referred to as a 'Steeple'. No wonder it is everywhere. Don't dwell on getting the name right. The story of its enthrallment over all who see it is enough.

Simply based upon someone's memory of this rose being a "Mrs. Something", I wonder if it is 'Mrs Elliott'. The mauve-pink flowers seem to fit the bill and it apparently was in Australia early on. I found this reference in 'The Victorian Farmers Journal and Gardeners Chronicle' of 9 Feb, 1861, page 20:

"this queen of flowers, the good much-loved old English rose - we have not lagged so far behind, as the following list will testify, which are now largely grown throughout the colony, viz .-
Auguste Mie, Aimee Vibert, Baronne Prevot, Boule de Nanteuil, Chenedole, Cloth of Gold, Coupe de Hebe, Devoniensis, Dupetit Thouars Duchess of Sutherland, Frederick II., Geant des Batailles, General Jacqueminot, Jacques Laffette, La Ville de Bruxelles, La Reine, Magna Rosea, Madame Andot, Do.Bravy, Do. Laffay, Do. Maurin, Do. Trudeux, Do. Zoutman, Mrs Bosanquet, Do. Elliott, Paul Ricaut,Malmaison, Vicomtesse de Cazes... "