Time for review(s). Spanners-a-plenty
1901 census. Head of house is a shoemaker
https://familysearch.org/ark:/61903/1:1:X98M-WHN There are another couple of births to this family unit after agnes
HEMSTEDT, AGNES WINIFRED FARRELL 1898 J Quarter HACKNEY Volume 01B Page 578
HEMSTEDT, THOMAS PATRICK FARRELL 1896 M Quarter in HACKNEY Volume 01B Page 575
HEMSTEDT, FRANCIS JOSEPH FARRELL 1893 S Quarter in HACKNEY Volume 01B Page 584
HEMSTEDT,
HENRY EDWARD FRANCIS FARRELL 1891 M 1/4 in POPLAR Volume 01C Page 595(death? HEMSTEDT, HENRY EDWARD FRANCIS 1891 S1/4 POPLAR Volume 01C Page 339)
HEMSTEDT, HELEN THERESA FARRELL 1889 M Quarter in POPLAR Volume 01C Page 596
HEMSTEDT, ELIZABETH MARY FARRELL 1887 M Quarter in POPLAR Volume 01C Page 587
HEMSTEDT, HENRY JOSEPH FARRELL 1885 M Quarter in POPLAR Volume 01C Page 616
1891 census. Head-of-house is a Boot maker
https://familysearch.org/ark:/61903/1:1:QHHC-7MMMarriage appears to have been in Colchester Dec 1883.
Still no Pottinger(s) around. Can we ask where you picked up the name?