The personal journey of an Indigenous man as a senior Australian Army chaplain will be the focus of an annual public lecture held in Canberra in memory of Wiradjuri Elder Pastor Cec Grant OAM, or Wungamaa.

A nephew of Wungamaa, Chaplain Ivan Grant, will deliver the 2015 Pastor Cec Grant OAM (Wungamaa) Lecture from 6.30pm on Friday 20 March at the Australian Centre for Christianity and Culture, 15 Blackall Avenue in Canberra.

Based at Army Headquarters in Canberra as Staff Chaplain, Chaplain Grant is a Wiradjuri man from Griffith in the Riverina region of NSW. He has served in the Army for the past 13 years.

Promoting the theme of remembering the military contributions of Aboriginal and Torres Strait Islanders, Pastor Grant will share his story.

"My great uncle served in the World War One and my grandfather was one of the Rats of Tobruk in the Middle East during the Second World War in 1941," he said.

"During my address, I will share their stories as well as my personal journey as an Aboriginal and Torres Strait Islander man in the modern Australian Army.

"Uncle Cec has always been an inspiration to me and it is a real honor to be asked to deliver this lecture."

Hosted by the Australian Centre for Christianity and Culture, the lecture is organised annually by Charles Sturt University (CSU) along with Wiradjuri Elders and Wiradjuri Christian Development Ministries to honour the work of Wungamaa, and his contribution to his community, CSU and the wider Australian community.

Wungamaa was born in Condobolin and died in Albury in 2005, aged 71. He was a pioneer of the Welcome to Wiradjuri Country signs and led the way to revive Wiradjuri language programs.