Her father was a prosperous director of the North British and Mercantile Insurance Company and a Justice of the Peace first for Northumberland and later for Basingstoke.

Tabitha was a character she had performed to entertain the convalescent soldiers who stayed in Sherfield Manor when it was used as a hospital during the First World War.

She worked for the 1925-1929 Windmill Hill, Avebury excavations where she was the first to recognise the use of bird bones to decorate Neolithic pottery.

Together they worked on the Hembury site in Devon, where Liddell uncovered a framed entrance which led to an enclosure which had been destroyed by fire.

[8] Liddell died prematurely and was buried with her parents and brother near the Church of the Holy Ghost in Basingstoke.