Executors: my two sons, David S. and William Greenough. Legatees: to the children of my son Thomas, deceased, Rachel, Ann, and Sally Greenough, L13.6.8 each. To their sister Betty L5. To the children of my son John deceased, 200 acres of land. I also give his eldest son John my silver can, fellow to the one I gave his father. To his sons Wm. and David, and to his daughters, Sarah, Abigail, and Mehitible L5 each and the house they live in. My daughter, Sarah Edwards, L10 and a silver chafing dish. My daughter Martha Stone all my lands in the County of York, Cape Porpoise, and Wells, and my silver salver, and her son Thomas L5 and a silver porringer. My daughter Elizabeth Brooks L10 and a silver tea pot. My daughter Mary Savage L40 and to her son Thomas one silver porringer. To the children of my daughter Jerusha, deceased, Martha Clark Lepear and Sally Lepear each of them, L50, and a pair of salt shovels, and a pepper box, silver. All the rest of my estate to my two sons, David Stoddard Greenough, and Wm. Greenough. The late Shute Shrimpton Yeoman, Esq., left an estate to my late spouse Sarah, and to her children, in the Island of Antigua. In case my son David should have a legal possession of same, and Wm. no part, in that case I give my son David L100 and sundry pieces as per schedule amount to L63.11.3. All the rest of my estate to my son, William Greenough. Of particular interest with relation to Greenough's business in instruments is the following advertisement that appeared on May 11, 1742, in _The Boston Gazette_: To be sold by Capt. Cyprian Southack at his House near the Orange Tree and at Mr. Tho. Greenough's Mathematical Instrument Maker near the Draw Bridge, said Southack's Char[t]s of the Coast from Sandy Point of New York to Canso. Invaluable for this study are Thomas Greenough's manuscript accounts that have survived in the collections of the Massachusetts Historical Society. The following itemized entries are selected from Greenough's business accounts over a period of two decades to provide data on the prices current in the second half of the 18th century for new instruments and for repairing others: In Account with Thomas James Gruchy: 1754, April 27: 1 Compass for the Schooner _Sea Flour_ L0.8.0. 1758, Nov. 28: 1 Spyglass L1.13.8. 1759, Jan. 25: Mending 3 Compasses for the Schooner _Susanna_ L0.6.0. In Account with Nathaniel Bethune: 1760, August: A gauging rod L0.6.0. Mending a telescope L0.3.0. In Account with Captain McAndrew Mirick of Nantucket: 1772, March 21: For 2 compasses, 1 leaded L0.16.8.