Hi
I think the family of Edmund Richard White the artist is rather complicated. It has come up previously on Rootschat, perhaps more in regard to one or two of his other children, than to him, or his son Edmund Joseph Robert.
Anyway, it seems certain that EJR married Mary Hughes, afterwards they have not been seen together.
I think we are a way off Clara yet.
That second marriage possibility, which would be bigamous
29 Feb 1880, St John Deptford
Edmund Joseph White, 28, Bachelor, Raly Guard, father Edmund Richard White, Architect
+
Mary Ann Haylock, 24
I think they might be in Islington in 1881, under her name!
Edward J Haylock 28 Railway Carman, born Clerkenwell
Mary Ann Haylock 25 Dressmaker, born Ely
https://www.familysearch.org/ark:/61903/1:1:Q279-VP5XUnless someone can find such an Edward J Haylock!
Edmund and Clara - birth registrations of their other children, have we mentioned them much?

Clara Coombs goes into Chelsea workhouse, 17 April 1887. She is 24, single, and pregnant.
Lilian (Coombes!) is born same day, entry further down the page (also on ancestry)
https://www.familysearch.org/ark:/61903/3:1:3Q9M-CS1L-896P-2Clara and Lillian Coombes discharged 30 April 1887
https://www.familysearch.org/ark:/61903/3:1:3Q9M-CS1L-89XJ-7Now I have got the births of the first two
COMBES, LILIAN CLARA
Mother's Maiden Surname:
—GRO Reference: 1887 J Quarter in CHELSEA Volume 01A Page 349
COMBS, MAY WHITE
Mother's Maiden Surname:
—GRO Reference: 1889 S Quarter in CHELSEA Volume 01A Page 331