George Washington to General Howe (General Howe’s dog)
Note from George Washington to General William Howe following the Battle of Germantown, in which Washington expresses a desire to return a dog found with Howe’s name on the collar: https://founders.archives.gov/documents/Washington/03-11-02-0432. Washington was a great lover and breeder of dogs and had many at Mount Vernon. For more about Washington’s dogs, see this overview by Mount Vernon.