Sorry no Carvallos in any of the early census.
1831 Poplar page 132
James Lowton? 281 High Street Painter 3male 2 female
1821 Hackney page 52
Geo Lowther Hackney Wick, lab.1 male 1 female 2 people in 2 households
1811 Hackney
George Lowther Bennetts Rents, Well Street no occ given bk 6 p.38
Edward Lowton Sandford Place Gentleman bk 5 p2
Hope this helps
Sylviaann