Family and friends of convicted Bali Nine duo Andrew Chan and Myuran Sukumaran will hold memorial services to mark the anniversary of their executions.
Chan's family have booked a Hillsong chapel in Sydney's northwest on Friday, a year after he faced an Indonesian firing squad alongside Sukumaran.
A private service is expected for Sukumaran on Saturday at the nearby DaySpring Church in Castle Hill.
Chan, 31, and Sukumaran, 34, were shot dead with six other drug offenders on the island of Nusakambangan on April 29, 2015, 10 years after they were caught smuggling heroin in Bali.
Chan's brother Michael said the family had been struggling ahead of the anniversary.
"(It) has been a roller coaster ride for the family to come to terms with the loss," he told Reprieve Australia, an organisation fighting the death penalty.
"There has not been a day that has gone by that he is not in our thoughts. Countries need to look at ways to rehabilitate prisoners instead of executing them."
He said he wanted to speak up for others who remained on death row.
Febyanti Herewila, who married Chan two days ahead of his execution, said his legacy to abolish the death penalty will continue.
"People make mistakes especially when you are young like him," she told Reprieve Australia.
"Also Andrew wants the young people from around the world to learn from his life."