I undertand that. However, when William McTavish (of said Dunardry) sent his 4 children from his 'marriage' to Marian Rendall back to Scotland, he sent them to the Orkneys and the 3 girls lodged there with the Mowatts. The matriarch (a Flett) was still alive in 1861 and the name Flett does occur in the Rendall family (John George married Jessie Flett Laird) so obviously they originated from there. McTavish just happened to be the father and is almost redundant as far as this discussion goes. (The son, William, was recorded in the 1861 census as 'visiting' the Loutit family - also in Stromness...not sure whether they provided accommodation for him while he was at school as the head of household, Stewart Loutit, is simply described as 'house keeper'. William died, aged about 20, in 1863).
lydiaann