I climbed to the top of Chipman's Hill and watched the sails disappear, and such a lonely feeling came over me that, although I had not shed a tear through all the war, I sat down on the damp moss with my baby in my lap and cried.

The faculty club at the University of New Brunswick, Fredericton has a Benedict Arnold Room in which framed original letters written by Arnold hang on the walls.

In 1785, Benedict Arnold and his son, Richard moved to Saint John, New Brunswick, where they speculated in land and established a business doing trade with the West Indies. Arnold purchased large tracts of land in the Maugerville area, and acquired city lots in Saint John and Fredericton.^[104] Delivery of his first ship the Lord Sheffield was accompanied by accusations from the builder that Arnold had cheated him; Arnold claimed that he had merely deducted the contractually agreed amount when the ship was delivered late.^[105] After her first voyage, Arnold returned to London in 1786 to bring his family to Saint John. While there, he disentangled himself from a lawsuit over an unpaid debt that Peggy had been fighting while he was away, paying £900 to settle a £12,000 loan that he had taken while living in Philadelphia.^[106] The family moved to Saint John in 1787, where Arnold created an uproar with a series of bad business deals and petty lawsuits.^[107] The most serious of these was a slander suit which he won against a former business partner; and following this, townspeople burned him in effigy in front of his house, as Peggy and the children watched.^[108] The family left Saint John to return to London in December 1791.^[109]

In July 1792, Benedict Arnold fought a bloodless duel with the Earl of Lauderdale after the Earl impugned his honor in the House of Lords.^[4]With the outbreak of the French Revolution, Arnold outfitted a privateer, while continuing to do business in the West Indies, even though the hostilities increased the risk. He was imprisoned by French authorities on Guadeloupe amid accusations of spying for the British, and narrowly eluded hanging by escaping to the blockading British fleet after bribing his guards. He helped organize militia forces on British-held islands, receiving praise from the landowners for his efforts on their behalf. He hoped that this work would earn him wider respect and a new command; instead, it earned him and his sons a land-grant of 15,000 acres (6,100 ha) in Upper Canada,^[110] near present-day Renfrew, Ontario.^[111]