In 1875, he was appointed registrar for Témiscouata County.

In 1881, he was appointed registrar for the county.

In 1831 Burn was appointed registrar of marriages at chapels prior to 1754.

On 26 November 1853 he was appointed registrar of the admiralty court.

He was appointed registrar for the County in 1867.

In 1561, he was appointed registrar of the diocese of St. David's.

Later that same year, he was appointed registrar for Wellington County.

He was later appointed surgical registrar and curator of the museum.

After the war, he was appointed registrar for Glengarry County.

In 1934, he was appointed sheriff and registrar of Simcoe County.