Robert Bradshaw Osborn's wife, Ann Trench, was born in Wellingborough in about 1807. She was the youngest of seven surviving children born to Charles and Ann Trench.

Charles Trench was born in 1764 and served in the Peninsula War, in the 1st Battalion, 48th Foot (Northamptons). He was at the Battle of Albuera in 1811 as a Sergeant and in 1814 in the Battle of Toulouse. His wife was with him in Spain and France but the family record does not say whether the children were also camp following. Charles died in 1855 at the age of 91. There was some conjecture that he was a Mason but this has not been substantiated. The family seems to have thought Ann was of foreign birth; "brought back from the war in Spain".

Charles and Anne's youngest son, John, born in 1800, was also in the military. He served in the baggage train at Waterloo in 1815 and told stories of the battle to his niece, Lizzie (the Elizabeth Osborn who married Samuel Wilson). He was later a Chelsea Pensioner and died in about 1880.

This information comes (via a contact on from a letter sent from Penrith in 1935 to Frank Langley, one of James Osborn's nephews. It seems to have been written by a niece of James' sister Lizzie (see above).