As well as being chosen for the summit, the promising Love-Henry has recently been signed as a development player by the Warriors.
Tribal (iwi) affiliations for McGruer, who attends Te Wharekura o Mauao in Tauranga, are Ngati Porou/Ngati Haua while Matua, a student at Te Kura Maori o Nga Tapuwae in Auckland, is Ngati Whatua/Te Atiawa.
Clark (Tokoroa High School) is Tainui/Ngati Porou and Love-Henry, who attends Taupo's Te Kura Kaupapa Maori o Whakarewa i Te Reo Ki Tuwharetoa, is Ngati Tuwharetoa/Ngati Awa.
All Stars team captains Johnathan Thurston and Benji Marshall and their teammates will teach life skills to the 64 students when they gather in Brisbane.
Activities will include physical challenges, career advice training and job interview sessions, as well as attending the All Stars Community Festival and Learn Earn Legend! Jobs Expo (February 8).
They will also play a role in the pre-match entertainment at Suncorp Stadium.
Students from Melbourne and New Zealand will take part in the summit for the first time, with others travelling from areas as remote as Weipa in the Gulf of Carpentaria and Mount Isa in north-west Queensland.
"This year's group consist of students from extremely diverse walks of life," said NRL general manager for community, culture and diversity, Trish Crews. "For the first time we have been able to invite participants from every club and we extend a special welcome to our attendees from across the Tasman.
"There is a great opportunity for the group to learn from our Indigenous All Stars who have only just completed their own indigenous players' camp on the weekend prior as well as the NRL All Stars, coaches, mentors and their own peers," she said.