[2] When his father died in August 1901, Henry became managing director and remained in that position until the Grooms sold their interest in the business to the Dunn family in 1922.

[2] In 1904, Groom unsuccessfully contested the seat of Drayton and Toowoomba in the Queensland Legislative Assembly following the death of John Fogarty.

[1] His time in the Council was unremarkable and, except for one major speech on closer settlement, he rarely spoke.

[2] In his younger years Groom had been a member of the Queensland Defence Force, rising to the rank of Lieutenant.

After a short service at St James Church, his funeral proceeded to the Drayton and Toowoomba Cemetery for burial.