The union's council also endorsed Amy Kelly for campaigns and Niamh Murtagh for welfare, the only two contested positions in this year's elections.
Repair of all lamps and plugs and repaired heating in the 24-hour library are among the improvements announced tonight.
The rare honour was bestowed on Callaghan at TCDSU Council this evening, making her the fourth ever recipient of the award.
Voting in the referendum will take place between March 22nd and March 24th.
The research, by Trinity's Irish Longitudinal Study on Ageing (TILDA), also revealed that 48 per cent of adults over 54 provide financial assistance to their children.
The union had given College two weeks to offer a new deal to administrative staff after their first offer failed to address staff concerns.
The society has had to reduce its workshops from five nights a week to one, with on-campus spaces to practice becoming unavailable.
President of USI, Annie Hoey, outlined strong student support for repeal, and the history of the union's provision of information on abortion services.
This marks an increase of over €20 million on the previous year, as Trinity continues to cultivate a network of alumni.
Of 193 students who requested support, only 3 per cent attended the support group last year.