Balli was a collector. He may have worked for the Imperial Mercantile Credit Association and Metropolitan Provincial Bank, whose Director was Xenophon Balli (1814-1877).
He was, with a number of Whistler's other patrons, a member of the Greek Orthodox Church in London. He was a witness at the marriage of Alexander Constantine Ionides in 1887.
He was a collector and patron of JW (he owned Gold and Orange: The Neighbours (YMSM 423)). His collection was sold at the Galerie Georges Petit in Paris on 22 May 1913.
The London Banks, Credit, Discount and Finance Companies, London, December 1865, p. 57; Constantinides, Michael, The Greek Orthodox Church in London, Oxford, 1933.