Benjamin Gregg did not arrive on the Gil Blas in 1855. It was John Gregg
From Otago Witness in 1898
Gregg, John, born Windermere, Westmoreland arrived by Gil Bias in 1855 was messenger and clerk to Captain Cargill. Died many years ago widow now resides in St. David Street, Dunedin.
Family, two sons, one daughter.