Hello Sandra,
I think you are spot on with your suggestions.
The 1901 census of Everton Liverpool at 55 Clarrence Grove has Joseph Shimmin nephew aged 15 Port Office Boy? (Engineers) b.Lancs Liverpool, which presumably is what Joan was referring to. The writing is terrible, but the household Hd was Morris Davies 68 Shipwright b.Lancs Touryn? with his wife Mary 67 b.Caernarvonshire, Bethesda? and Evan Davies g son 16 apprentice b.Lancs Liverpool. Also Jane Jones sister widow 71 b.Caernarvonshire, Bethesda? Following Joseph Shimmin was William Shimmin nephew 10 b.Lancs Liverpool, and Ethel Shimmin g? niece aged 1 month.
The next household, at no.57, was the Quiggin family all b.Isle of Man. Margaret widow 77, with son George 39 and daur Margaret 37.
Sue