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