Hi Abygail,
My great grand father (Pte Martin Daley) served in the 12th Regiment and was at Ballarat during Eureka. I have undertaken a considerable amount of research into the Regimen to my sit and refer you to the site dedicated to the Regiment and its service in Australia and New Zealand.
larbalapplication.appspot.com
I have not been able to obtain any further info on Private Webb other than:
Private (3301) William Webb arrived on the ship Empress Eugenie and was stationed at Ballarat. Webb, labourer, born Hartfordshire England, had enlisted on the 6th October 1853, and was aged nineteen at time of death on the 5th December 1854.
This info was copied from the 1st Battalion's Muster and payroll -PRO3714.
One of the avenues within the old Ballart cemetery has been named Webb Drive after Pte Webb.
If I may be of any further assistance wrt the Regiment pls send me an email.
Regards,
Ken