Joseph King Munro was born 9 June 1862 to Catharine McDonald and Duncan Taylor Munro in Bloomfield Parrish, Prince Edward Island, Canada. He was baptised Catholic on 20 June of the same year by Father Roy in St. Anthony’s Church.
Catharine McDonald was Irish Catholic; little else is known about her.
There are conflicting sources concerning his arrival in the United States, one source lists 1874, while several others list 1881.
He married Julia Fanning some time around 1890.
They had 6 children, all born in New Haven:
- Isabella (1891)
- Joseph (1895)
- Frederick (1897)
- Kathleen (1900)
- Albert (1902)
- Louis Gregory
There is no information available on his death.