In 1901 the family lived in house 3, Castle, Ballyshannon, Co. Donegal. The property is described as house 10, Castle Street in the 1911 census.
Frank joined the Belfast Banking Company and served in Castleblayney branch.
A member of his family was the Very Rev Canon E Maguire of Tamney, Letterkenny.
The Belfast Banking Company 'Roll of Honour' booklet records Maguire as working in Londonderry branch.