I found Margaret McLachlan in 1901 at 3 Hook St, Liverpool:
- Samuel Mclachlan, head, 38, Marine Stoker, b.Liverpool
- Mary Mclachlan, wife, 32, b.Glasgow
- Sarah A Mclachlan, dau, 13, b.Liverpool
- Andrew Mclachlan, son, 12, b.Liverpool
- John Mclachlan, son, 8, b.Liverpool
- Agnes Mclachlan, dau, 4, b.Liverpool
- Margaret Mclachlan, dau, 0, b.Liverpool
But I haven't found Mohamddin Peterson. I searched for Mohamddin and variants and John. There were several (five) John possibilities, but none correct. I think I found Mohamddin (John) in 1911 as a 15-year old trainee sailor (see previous).