He was born at Guntawang near Mudgee to pastoralist Edwin Rouse and Hannah Hipkins.
He was educated at Parramatta and subsequently managed his father's 4,000-acre property on the Cudgegong River, which he inherited in 1862.
In 1876 he was elected to the New South Wales Legislative Assembly for Mudgee, but he was defeated in 1877.
He won the 1879 by-election by a single vote, but this result was overturned by the Committee of Elections and Qualifications.
No reasons were published however The Sydney Morning Herald stated that it appeared that the majority of Mr Rouse was created by illegal voting.