Isaac Baldwin, son of Dr. Calvin McQuesten, studied law and was admitted to the firm of Proudfoot & Jones. When Proudfoot was elevated to the bench, the firm became Jones & McQuesten until they formed a partnership with Chisholm in 1882. Jones retired in 1886 and the firm became known as McQuesten & Chisholm. Isaac Baldwin was married to Mary Jane Baker (ca. 1848-1934) and they had six children: Mary Baldwin (1874-1964), Calvin (1876-1968), Hilda Belle (1877-1967), Ruby Baker (1879-1911), Thomas Baker (1882–1948) and Margarette Edna (1885-1935). None of their children married. In 1885, Isaac and his family moved to Whiterhern, the McQuesten's family home.
Dr. Calvin McQuesten was born in New Hampshire in 1801. He graduated from medical school in 1830 and set up his practice in Brockport, New York in 1832. In 1835, McQuesten partnered with his cousin John Fisher, as well as Priam B. Hill and Joseph S. Jones to establish an iron foundry in Hamilton, thus becoming one of the forerunners of “heavy industry” in the city. Dr. Calvin McQuesten moved to Hamilton in 1839 to take an active role in managing the foundry, known as McQuesten and Co. In 1853, he sold a portion of the firm to his nephews, Luther and Payson Sawyer, and cousin William McQuesten. In 1856, partner John Fisher sold his portion of the foundry business and moved to Batavia, N.Y., leaving Dr. McQuesten sole owner. In 1857, Dr. McQuesten retired and handed the company over to the Sawyer brothers, including another nephew, Samuel Sawyer, an engineer for the foundry. They operated the company under the name of L. D. Sawyer and Co. In 1889, they went into partnership with H.A. Massey of Massey-Harris Co. Ltd. forming Sawyer-Massey Co.
Dr. Calvin McQuesten was on the Board of Directors of the Gore Bank, had shares in Hamilton Water Company, donated to the Wesleyan Ladies College and helped finance the construction of the MacNab Street Presbyterian Church. In 1852, he purchased a house which was first known as Willow Bank. The name was later changed to Whitehern by Isaac and Mary McQuesten. Dr. McQuesten was married three times and he had two children who survived: Calvin Brooks (1837-1912) and Isaac Baldwin (1847–1888). Calvin Brooks graduated from medical school and set up practice in New York. Isaac Baldwin studied law and joined a practice in Hamilton.
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Subfonds consists of textual records mostly pertaining to Dr. Calvin McQuesten and his son, lawyer Isaac Baldwin McQuesten, arranged in the following series: business transactions, legal records and correspondence.
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Series consists of records pertaining to business transactions, including mortgage documents, a debenture register containing debentures issued by the Township of Barton to various individuals and organizations, promissory notes, receipts and statements of costs, accounts and payments, authorizations of payments and non-payments, bonds, bank drafts and cheques, copyright and patent documents, statements and agreements on partnerships, as well as tenders and agreements for work and renovations.
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Series consists of documents of a legal nature including, property records, power of attorney records, estate papers, court documents and client files.
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Subseries consists of property records including, land grants and deeds, leases, searches for lot title deeds, land lots, and releases of liens on land.
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Subseries consists of power of attorney records granting Calvin McQuesten power of attorney for William Ormiston, as well as granting Isaac Baldwin McQuesten power of attorney for Calvin McQuesten, Stephen Payson Sawyer, Thomas Craigie, Frank Sawyer, P.G. Sinclair and John Harvey. The subseries also contains 2 letters of guardianship regarding the Sawyer family, and 1 letter of trusteeship concerning Knox Church.
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Subseries consists of records pertaining to the estates of Calvin McQuesten and Isaac Baldwin McQuesten, including statements of assets, liabilities, life and property insurance.
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Subseries consists of a court document related to a case from the State of New Hampshire, USA in the names of Edward Lerned versus Calvin McQuesten. This subseries also includes documentation from the Provincial Secretary's Office regarding Isaac Baldwin McQuesten’s Commission as Notary Public, as well as the Department of State in Ottawa regarding a release of judgment being referred to the Minister of Justice.
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Subseries consists of legal documents relating to two family estates; the Grierson family estate and the estate of Mary Wallace. Documents in the Grierson file include correspondence and estate papers such as deeds, mortgage sales and payments, power of attorney records and two fire insurance polies. The Mary Wallace file contains some letter correspondence from the law firm Chisholm, McQuesten & Welby to Kate Millar, regarding a watch that was bequeathed to her by her friend, Mary Wallace.
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Series consists of correspondence including a letter of resignation from Calvin McQuesten to the President and Directors of the Gore Bank, letters acknowledging receipts of payments, as well as a thank you letter addressed to Isaac Baldwin McQuesten. This series also contains letters of condolences from various individuals to Isaac Baldwin McQuesten regarding the death of his father, Calvin McQuesten.
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