Provincial hockey representative Mr Nation has put together the Hawke's Bay team that will take on a New Zealand invitational side in the match, hosted by Napier's Park Island.
"Everyone in the team has been involved with the Findlays, either through playing with Graeme or having some association through rep hockey."
Meanwhile, Mr McAleese took just three days to assemble a "diverse" team of junior, current and former Black Sticks.
Mr McAleese, who has played more than 200 games for the Black Sticks, first met Mr Findlay at the age of 13, where they played for Taradale Hockey Club.
"He was a mentor. He took me under his wing."
Over the years, he had become close with the Findlays, who were one of the region's most cherished sporting families.
"[Ms Nilsson-Findlay] would do anything to help out. She's always there, watching the kids play, she's an absolute sporting sweetheart."
Saturday's event will also feature an auction, raffle and sausage sizzle.
The 2.30pm Findlay Family Benefit Match will be preceded by children's games, with teams captained by each of the four Findlay children.
Entry will cost a gold coin donation and spectators are asked to wear pink in support.