John Kennedy was born on 04 April 1862, the son of ship carpenter Robert Kennedy and his wife Florinda (Aitken), and the brother of Malcolm and Colin Kennedy. In 1860 the family migrated to Melbourne where Kennedy senior set up as a shipwright. In 1879 Malcolm and John, who trained as a naval architect, joined their father as Robert Kennedy & Sons, shipbuilders and shipsmiths. On 27 December 1883 at North Melbourne, Malcolm married Ann White with Presbyterian forms. Next year Robert Kennedy & Sons removed to Hobart where with John W. Syme and W. J. Duffy, partners until 1889, they took over the Derwent Ironworks & Engineering Co., a foundry formerly owned by the (Alexander) Clark family. The Kennedys also acquired the patent slipyard, formerly Ross's, at Battery Point. After the shipbuilding industry in Hobart began to flag John also turned to mining: he attended the Ballarat School of Mines, and reopened the Hobart smelters which had been an adjunct of the Derwent Ironworks in the 1870s. He made several voyages overseas on smelting business and as mining promoter, and was a member of the London Stock Exchange. In 1913-14 he was manager of Tongkah Compound (1910); Robert Kennedy & Sons was reputed to have contributed to the success of the Hobart-run Tongkah Harbour, Thailand, tin mines by developing a suitable dredge. The brothers also held shares in the Irrawaddy Burma Co. John was a member of the Australasian Institute of Mining Engineers and from 1932 an honorary life member of the American Institute of Mining & Metallurgical Engineers. John died in Hobart on 10 January 1937. (Ann G. Smith, 'Kennedy, John (1862–1937)', Australian Dictionary of Biography, National Centre of Biography, Australian National University, http://adb.anu.edu.au/biography/kennedy-john-7092/text11963, published first in hardcopy 1983, accessed online 24 April 2020.) A book covered in black leather with 'John Kennedy' embossed on the front in gold. The book contains notes from the time he studies at the Ballarat School of Mines. The beginning of the book has an alphabetical section where John Kennedy has created an index.Inside front cover 'John Kennedy Nena Wharf Hobart Tasmania.' john kennedy, australasian institute of mining engineers, ausimm, american institute of mining metallurgical engineers, ballarat school of mines, lecture notes, lecture notebook, antinomy, brick clay, carbon, coal, copper, chemistry, clay, chrome, electricity, fire clay, gas, gold, gold bullion, glass, gold test for, iron metallurgy, light, lead, metallurgy, mica, mineralogy, pyrites, sulphur in pyrites, sugar, slags, wolfram, preparation of pure gold, scorification, gold bullion assay, petrography, melting poinys of bodies, metric system, geology, mount morgan, queensland, rock salt, assay of tailings, classification of rocks, muffle furnace, ballarat school of mines wind furnace, assay of antinomy, recovery of silver from solutionsheat pyrometer, spectroscope, organic acids, metallurgy of iron, assat of copper, cornstock lode nevada, mount morgan queensland, scarification, elmwood, metallurgy of lead, specific gravity, copper assay, seperation of gold from other metals, test for gold, wet assay, mercury

Correspondence from W. Robinson of Soho Foundry Maryborough to the Director of the Ballarat School of Mines. The letter is on letterhead which includes details for Abraham Robinson, Engineer, iron and brass founder, boiler maker, blacksmith, etc. The correspondence related to two samples of tailings for assay.soho foundry maryborough, abraham robinson, w. robinson, assay, ballarat school of mines, engineer, brass founder, iron founder, boiler maker, blacksmith

"The United Pyrites Company's Works are situated about three quarters of a mile from Spargo Brothers, and are on the northern side of the Marong road, in Pinch-gut Gully. Two processes are followed at these works, viz., the amalgamating process and the treatment by means of chlorine gas. The latter is called the Newbery-Vautin system, and the mode pursued is that laid down by Mr. Cosmo Newbery and Mr Vautin, whose names have been given to the process. Mr. Edwards manages these works. Three reverbatory furnaces are used to roast the pyrites, which is weighed in the truck before being put into the furnaces. At this weighbridge a sample of each lot is kept, and if the yield is not equal to expectation, the works are carefully gone over to see where the fault occurs. Care is taken at the furnace to regulate the heat, otherwise the pyrites might slag instead of roasting evenly right through. An immense revolving furnace (made of boiler iron) was used at these works. It was found to be suitable for treating blanket sand, but was not a success for roasting coarse pyrites. The process of amalgamating by means of Chilian mills is the same in these works as at the Western Works, but the United Works are on a larger scale, and eleven mills are utilised. It is the chlorine gas process which is most interesting here. The gas is made from sulphuric acid, black oxide of manganese, and common salt, and the gas is introduced into huge vats, where it works its way through a filter of pieces of quartz and then through the bed of roasted pyrites lying above. The action of the gas transforms the gold into chloride of gold. This is easily dissolved in water, and in that form is drawn off into huge delf jars, where the use of sulphate of iron precipitates the gold to the bottom. A small battery—eight head of stamps in two boxes—is in use here to crush small consignments of stone sent for trial. Test crushings come from all the Australasian colonies, and even from India. The jars used are manufactured at Epsom, and some of the salt used is also of home manufacture, from the Salt Lakes on the Northern plains. Mr. Edwards took us over a new building in course of erection, and in which the chlorine gas is to be generated in the midst of the pyrites— a still further advancement in the new process. There is some very good machinery in this new building, and the tailings from the ordinary pyrites works will also be treated by this chlorine gas system, which has been found to work well at Mount Morgan, in Queensland. The purest of gold is obtained by this process, the gold passing in solution into a charcoal filter, from which it emerges in the shape of metallic gold. We saw some nice cakes of retorted gold at the works. One of 26oz. was from some New Zealand pyrites (2½ tons), and assayed over 23 carats. There were also cakes of Avoca gold, of silver, and of the tremulous amalgam." (The Argus, 4 February 1887)Two handwritten letters to the Ballarat School of Mines on Bendigo United Pyrites Company Letterhead.bendigo united pyrites company, pyrites, ballarat school of mines, j.j. deeble, joel deeble, joel james deeble, a.m. dean, fred j. martell, martell, s.h. cowan, letterhead

Small maroon leather covered book of 57 pages. engineer, laws, concentrates and tailings, courts of mines, assays, foundries, tailings, edwin r. field, mining

'A communication from Mr. A.T. Balaam asking that the Central Board of Health be communicated with on the subject of arsenical fumes from the furnaces of the Bendigo Tailings Company at Quarry Hill, where pyrites are to be treated, was also referred to the Mayor.' Bendigo Independent, City Council, p9. 31st May 1913. 'Tenders are invited by the Bendigo Tailings Company for the purchase of two complete cyanide plants, first class assay plants, stores and equipment. Full details may be obtained from the Manager, Mr. J.J. Stanistreet.' Bendigo Independent, p4, 3rd March. 1916.Dark green hard dover book, maroon binding on spine. One hundred and sixty six pages of which ninety three are used. On front cover, white label with 'Double Ledger' printed in black. On front page, a purple stamp: ' Bendigo Tailings Company, No Liability' Alphabetical index in front of book detailing names and pages of transactions. Example for 'L' entry: lease rents; Langdon S.J.; Lansell G.V., L.N. and E; land. Entries in book date from 1912 - 1913. Ledger forms part of the Margaret Roberts Collection of Mining records.bendigo, margaret roberts, , goldmining, bendigo tailings co. n.l., mccoll rankin and stanistreet, arsenic