The funeral service for Hannah, 19, will be held at 2pm (AEST) Sunday in the chapel of All Hallows School in Brisbane where she was a student until two years ago.
Both went into remission, but the cancer returned for Hannah, who was diagnosed with sarcoma, a rare form of cancer which attacks the body's tissue.
Tracey Wickham, dual swimming world champion and former holder of the 400m, 800m and 1500m freestyle world records, said she took comfort her daughter had her dying wish.
The funeral would be treated as the wedding her daughter wanted so much.
"I know I was given a gift to swim fast and I know it wasn't now to win gold medals or for pats on the back," she said.
Megan O'Dowd, who was due to visit the 19-year-old in hospital on the day she died, told NEWS.com.au that Hannah, the most beautiful girl also had the most romantic of engagements.
The daughter of record-breaking swimmer Tracey Wickham, Hannah died early on Tuesday morning, having married Mr O'Driscoll to fulfil her dying wish.
''He was asking how are you, how are you.'' She also said that Hannahs funeral, scheduled for Sunday, would be more like a wedding.