In 1877 he returned to Ireland on two years leave of absence and lived in Ballysadare County Sligo with his father.

In 1879, he retired after 11 years of service with a pension and after the death of his father in 1894, moved to Dublin where he spent the rest of his life devoted to astronomy.

Gore had no formal training in astronomy, and began to study the sky while working in India.

[1] His first book "Southern Stellar Objects for Small Telescopes" was published in India in 1877.

[13] Gore died on 18 July 1910 when struck by a horse and car whilst crossing Grafton St., Dublin.