Marcus is married to Betty Wheeler (Albert Namatjira’s granddaughter) and lives in Hermannsburg.
- 2014 Namatjira to Now, Parliament House, Canberra, ACT
- 2015 Hermannsburg Horizons, Wooloongabba Art Gallery, Brisbane, QLD
- 2016 Abducted!, Alcaston Gallery, Melbourne
- 2017 ArtGeo Complex Exhibition, Busselton, WA
- 2017 What if this photograph is by Albert Namatjira? TARNANTHI, Art Gallery of SA (AGSA), Adelaide, SA
- 2016 National Museum Australia (NMA), Canberra
- 2018 Art Gallery of South Australia (AGSA), Adelaide
2019 Tjina Nurna-ka, Pmarra Nurn-kanha, Itla Itla Nurn-kanha (Our family, our country, our legacy), Flinders University Art Museum, Adelaide SA
2019 Pmarra Nurna-Kananhala untha-lapp-urma (Walking through country), Hazelhurst Art centre, Sydney, NSW.
- 2017 Queensland Art Gallery Gallery of Modern Art, Brisbane, QLD