Large crowds braved the heat to pack the Victory Memorial Gardens today for the official launch of the 2015 Kangaroo March Re-enactment.

The re-enactment will see descendants and volunteers follow the 520km route from Wagga to Sydney experienced by the Kangroo's back in 1915, in what was the longest of war recruitment marches.

While dignitaries including Her Excellency Professor Marie Bashir, Governor of NSW, retired General Peter Cosgrove and patron of the Kangaroo March and director of the Australian War Memorial Dr Brendan Nelson were present, special honours were given to four men - Harris Redhead, Des Morton, Jim Kimball and Michael Fitzgerald - who are direct descendants of four of the original Kangaroos.

The men's families were among the crowds who witnessed a commemoration ceremony at the Cenotaph before a short re-enactment of how the Kangaroos were formed and farewelled was acted out by volunteers.

The re-creation saw the men presented with symbolic items including a kettle drum, the British Flag and Australian ensign and the Kangaroo March banner.

The Kangaroo March Centenary Re-enactment committee have labelled the event a huge success in encouraging the community to get involved.

"It's been overwhelming," committee vice-president Rhondda Vanzella said.

"What I hoped for was a large turn out and seeing people wanting to be a part of it.

"I think we got that today and it's just wonderful.

"There needs to be a big thank you to the people of Wagga."

The day was successful in bringing to light new Kangaroo March ties with more Wagga families coming forward to identify themselves as descendants of the original 88.