5 favorite votes.  

White, near white or white blend Hybrid Wichurana.
Registration name: Sweetheart (rambler, Walsh, 1900)

Bred by Michael H. Walsh (United States, before 1900).
Introduced in Australia by Henry Sewell, Payneham Nurseries in 1905 as 'Sweetheart'.

Hybrid Wichurana, Rambler.  

Pink, ages to white .  Moderate fragrance.  Average diameter 2.25".  Medium, very double, in small clusters, semi-globular bloom form.  Spring or summer flush with scattered later bloom.  

Climbing.  

Height: up to 9'10" (up to 300cm).  

USDA zone 6b through 9b (default).  Hardy.  very vigorous.  

Modern Roses 10 says this rose is extinct.