1To John Adams from Jedidiah Morse, 21 December 1815 (Adams Papers)
Your favor of the 28th. is before me, My son, & his parents feel much obliged to You for your polite & kind invitation to him, to visit you at your house for the purpose of taking your Portrait. He will deem it an honor & a privilege to enjoy the Society of Mrs Adams & yourself for a few days. He, therefore, authorises me to say to you, sir, that should it not be convenient to you to visit him...