"I confused the SDF with WLF, the ILP with the WTUL"

SDF - Social Democratic Federation, founded in 1881.

WLF - No record of this acronym on the internet, although WFL was the Women's Franchise League. Might it be Women's Labour Forum/Federation? Any ideas?

ILP - Independent Labour Party, founded in 1893;

WTUL - Women's Trade Union League, founded in 1873.

 

American branch of the WTUL in Labor Day parade, 1908
Public DomainAmerican branch of the WTUL in Labor Day parade, 1908 - Credit: Bain News Service