This subseries contains documents related to the administration of the estate of Gardiner Greene (1753-1832), one of Boston's wealthiest merchants and the son-in-law of painter John Singleton Copley. Under Greene's will, Charles G. Loring and Francis C. Loring were appointed trustees for his daughter Susannah Greene Hammond, whose husband Samuel died in 1836. When Susannah herself died in 1844, the Lorings assumed the financial guardianship of her two minor children, Samuel Hammond and Gardiner Greene Hammond, while Susannah's brother, John S. C. Greene, controlled the boys' education, religious upbringing, and daily affairs.

Documents include a copy of Gardiner Greene's will; correspondence between Francis C. Loring and John S. C. Greene; legal certificates of appointment; and probate filings. Accounts, receipts, and financial correspondence pertain to the management of property within the estate, including real estate in Boston, New York City, and Ohio; bank stocks; manufacturing and insurance stocks; mortgages; and other notes. Real estate investment records contain detailed information about stores in Boston's newly established Pemberton Square, including purchase and sales agreements and the management of rental property. Later documents are largely rental property accounts, annual financial reports of the estate, correspondence with New York property managers, and correspondence with John S. C. Greene about the financial support of his nephews.

Papers in this subseries are organized by case name, largely consisting of contract and admiralty law. They include correspondence, research notes, argument outlines, transcripts of court testimony, and manuscript and printed versions of court statements and findings. Of interest is the 1851 case of Evans v. City of Boston, in which a contractor sued the city of Boston for damages incurred while filling in the South Bay and building a railroad, as well as two cases tried before the U.S. Supreme Court: Hemmenway v. Fisher (1856) and Durant v. Lawrence (1857). Some cases appear to have been settled out of court. While much of the correspondence is that of Francis C. Lowell, it is unclear what part he or his brother, Charles G. Lowell, played in many of the trials.

This subseries includes printed statements of fact, defendants' briefs, plaintiffs' briefs, case proceedings, and pleadings. Most are related to cases tried by Charles and Francis Loring in the Massachusetts Supreme Judicial Court. Many contain handwritten annotations.

This subseries includes Jonathan Ingersoll Bowditch's editorial corrections for the 1839 edition of Nathaniel Bowditch's New American Practical Navigator. (After Nathaniel's death in 1838, editorial responsibility for the Navigator passed to his son Jonathan.) Also included are notes related to Jonathan's 1870 European trip with his wife, Lucy Orne Bowditch, and other family members; Alfred Bowditch's 1915 certificate of appreciation from the U.S. Navy; and other printed material.

Correspondence between Caleb W. Loring and Charles C. Paine, primarily concerns property rights of way for their adjacent Beverly, Mass. lands.

These papers include third party correspondence, unidentified accounts, and memos.