If there's a "first family" in Ontario politics, it has to be the Nixons of Brant County.

Harry Nixon was the longest-serving member of the Ontario Legislature ever (42 years), and was premier briefly in 1943. 

Robert Nixon, his son, was elected 50 years ago this month, winning the Brant constituency after his father died.

Nixon was Ontario Liberal leader on four different occasions, and spent almost 30 years at Queen's Park.

And Robert's daughter Jane Stewart was the family's third generation in public life, having served as a member of Jean Chretien's cabinet.

We invited Robert Nixon into our studio to mark the 50th anniversary of his first election, back in January of 1962.

Highlights of this interview will air on The Agenda tonight (Tuesday, January 31, 2012) at 8 and 11 p.m.

The entire interview --- plus pictures of Nixon's life --- are available below.

Our interview with Robert Nixon, on the occasion of the 50th anniversary since his first election win in January, 1962.

Robert Nixon stands beside the plaque that would soon be placed beside his father's gravesite in St. George, ON.

This plaque, on the north side of Highway 5 west of Hamilton, marks the location of former Premier Harry Nixon's home, where Bob and his wife Dorothy still live.

The two Bobs: Nixon, and then NDP leader Bob Rae, well before Rae won the Ontario premiership. After nearly a quarter century on the opposition benches, Nixon finally made it to the government side of the legislature in 1985, only to have Rae's improbable win in 1990 send him back into opposition. Rae later appointed Nixon to be Ontario's representative in London, UK. Nixon remains a fan of the now federal Liberal leader.