5 favorite votes.  

White, near white or white blend Hybrid Sempervirens.

Discovered by Pat Toolan (Australia, before 2003).

Found Rose, Hybrid Sempervirens.  

White or white blend.  Creamy white with dab of smoky rose on tips of guard petals.  Average diameter 2".  Small to medium, very double, cluster-flowered, in large clusters, button-eye, cupped bloom form.  Occasional repeat later in the season.  Small buds.  

Tall, armed with thorns / prickles, climbing.  Large, glossy, dark green foliage.  

Height: 8' (245cm).  

USDA zone 6b through 9b (default).  Vigorous.  

Flowering laterals have slightly declining prickles. Early spring bloomer (mid-November in South Australia). Found in Mitcham Cemetery, South Australia by Pat Toolan.

Very similar to the original Adelaide d'Orleans 1828, however "Lewes Kell's" two inch flowers seem smaller than the original rose which was quoted as being "20-30 lignes across [ca 6.35 cm or 2 1/2 inches to 9.52cm or 3 3/4 inches]"
Gallande should be considered.
Princesse Louise still being investigated.
Reine des Belges should be investigated
Leopoldine d'Orleans should be investigated
Donna Maria should be investigated
White Rambler should be investigated
Zelpha (noisette, Flon, 1837) should be investigated..

Belle Orleanaise buds seem white, while "Lewes Kell" are pink
Ruga discounted as thorns are wrong shape.
Princess Marie' discounted as the original rose was said to be red.
Jeanne d'Arc discounted as buds and hips appear to be more elongated.
Felicite Perpetue is similar but thorns are "fairly harmless and "Lewes Kell" thorns are brown hooked.
Note also – ‘Felicite Perpetue' petals go outwards, and "Lewes Kell" are incurved.
Aimee Vibert is similar but was said to have few prickles.
Royal Cluster 1899 was listed as growing at Anlaby, S.A. c1900 and two plants of "Lewes Kell" are in situ there today. However, references appear to show that it was a multiflora and Pat Toolan is of the opinion that "Lewes Kell" is not a multiflora. Photos of 'Royal Cluster' on the internet show pale buds and pinker blooms than the foundling.