Hi, thanks for your comments. This is what I have:
Marriages Mar 1901
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COHEN Fanny Mile End 1c 602
GREEN Thomas Mile End 1c 602
JACOBS Isaac Mile End 1c 602
Weill Blanche Mile End 1c 602
And, I found this lot - Blanche is 2 - Rachel Weill is on her own so hubby could have been in French Guyana then. Can't see Martha or Matthew etc - but the sister Rachel Weill could have been Simon's sister - she is from France! Their neighbours makes interesting reading - cigar makers and clothing dealers - big Jewish area by the look of it.
Household:
Name Relation Marital Status Gender Age Birthplace Occupation Disability
Rachel WEILL Wife (Head) M Female 37 London City Of, Middlesex, England
Jules WEILL Son Male 16 Mile End Stepney, Middlesex, England Boot Clicker
Sarah WEILL Daur Female 13 Stepney, Middlesex, England Scholar
Caroline WEILL Daur Female 12 Stepney, Middlesex, England Scholar
Frances WEILL Daur Female 9 Spitalfields, Middlesex, England Scholar
Joseph WEILL Son Male 7 Spitalfields, Middlesex, England Scholar
Mena WEILL Daur Female 3 Mile End Old Town, Middlesex, England
Blanche WEILL Daur Female 2 Mile End Old Town, Middlesex, England
Rachel WEILL Sister U Female 30 (B S), France Boot Trade Traveller (Com)
Woolf PHILLIPS Nephew Male 1 Mile End Old Town, Middlesex, England
Doro DORSTA Servant U Female 30 (F), Germany Domestic Serv