Fr T.J. Linane, From Abel to Zundolovich, Vol. 2: Biographies of Priests on the Australian Scene up to 1900, 1980, p 62:

Coletti, Vincenzo Pernia, Rt. Rev., Italian
Italian from Westminster Diocese, England
Some small mystery here! Why was this Italian-born priest ordained for Westminster Diocese, and why had he carried out his studies at All Hallows, Dublin? The A.H. records state he arrived on 3 October 1860 from an Italian seminary; that he was born in Alatri in the Papal States on 13 August 1843, being the child of Joseph Coletti and Teresa Saro. Some time later he transferred to St. Edmund's College, Ware, where he was ordained in September 1867. After a brief stay in the Westminster Diocese he came to Australia. Directory tracings show Shoalhaven (1869), Darlinghurst (1871) and 1877 - the year of Polding's death at the Sacred Heart Presbytery. Seemingly the Italian speaking priest quickly became a close confidant of the ailing Archbishop, and the title of Monsignor was the reward conferred in 1874. The first to receive such a title was the renowned warrior among the 'Men of '38', John Lynch. Fr. George Dillon and the Archbishop's 'right hand' man were in second list of honours despatches. After the death (and perhaps before the death of the Archbishop) Coletti won the esteem and confidence of Coadjutor Roger Bede Vaughan. For a time in Vaughan's time he was in charge at Petersham. When Vaughan went on his overseas business trip in 1883 - from which he was destined never to return, at least in the flesh - Coletti was in his company, along with another confidant, Dr. William Gillett. After Vaughan's death on 18 August 1883, nothing further is known of V.P.C. Seemingly he resumed duty in the diocese for which he was ordained. REF: Freeman's Journal, Sydney, 18.1.1883. N.B. Probably the correct spelling is Colletti.
(Footprints, Vol. 2, No. 7)
[Includes a photograph of Monsignor Coletti].