President Banda will be guest of honour at the Westminster Abbey service, which will be attended by Livingstone's 84-year-old great-granddaughter Elspeth Murdoch.
Professor Elspeth Graham, of the ESRC Centre for Population Change, estimated the number of over 75s in the Scottish population would increase from the current number of 0.4m over 75s rising to around 0.7m by 2035.