Mr Stevens asked that people donate to North New Brighton School Swimming Pool Club instead of buying the family flowers. Her funeral is tomorrow.
Mr Stevens is a former pupil of the school.
"Our grandchildren, are the fourth generation to attend the school.''
The other driver was taken to Christchurch Hospital with moderate injuries.
Meanwhile, Joseph O'Carroll who died when his motorcycle collided with a van at the Gasson and Byron St intersection in Sydenham last Thursday will also be remembered this week.
A tribute titled Joseph's Corner has been created at his work place Street and Sport Motorcycles.
His colleagues will take to their bikes today for "Joseph's last ride''.