I do have the Russian names of Lazurus(samuel's )larger family my 3xg parents were ;Leibe Yankel.+Sorre
Their other children; jankel leibe b.circa 1843. chaya-masha , nachman-leib , Golda-leib ,
Raphael-Leib b1870 + my 2x gfather (2nd son) 1851 Leizer--mendel Leib Fellman
so his youngest sibling was born about same time as his own eldest children
My G-Gfather's (George jacob) cousins that i know of all boys had father's name as their middle names
so Mendel -jankel Fellman was son of Jankel leib +
Other cousins BORN RUSSIA BETWEEN 1884-1900
Mendel-nachman ,Golda-nachman ,JACOB-N
glicka-n joel-n , zalel-chonan Nachman Fellman , Dvora-shifer N FELLMAN children of Nachman leib Fellman
jacob-n is probably the wallpaper packer who turns up in 1901 census + died w derby 1922 aged 55
one of these brothers or their father could be the Nathan who died prestwich aged 58 1916
Is Nathan a logical anglisization of Nachman ?
there is also a cousin Freyda-Raphael b1901 in Russia
at least 1 of these cousins stayed in Riga til at least 1912 as his child jacob david Fellman was b there in 1912 .
My g-uncles + aunts could all have middle names beginning M,L or S as their father's name changes
great grandfather only comes up as george jacob on 1891 census / Geo j on 1911
but unfortunately there's no evidence of his siblings having middle names.