Henry Longfellow is the second foal and first runner out of Minding (Galileo), Horse of the Year in Europe in 2016 and a multiple Group 1 winner in England and Ireland with seven Group 1 victories: the Gr.1 Oaks, the Gr.1 1000 Guineas, the Gr.1 Queen Elizabeth II Stakes, the Gr.1 Pretty Polly Stakes, the Gr.1 Moyglare Stud Stakes, the Gr.1 Nassau Stakes and the Gr.1 Fillies' Mile.

Second dam Lillie Langtry (Danehill Dancer) won the Gr.1 Coronation Stakes, the Gr.1 Matron Stakes and the Gr.2 Debutante Stakes. All her foals are by Galileo, and besides Minding they include Tuesday, winner of the Gr.1 Oaks, who also won the Grade 1 Breeders' Cup Filly and Mare Turf, the Gr.1 Irish 1000 Guineas winner Empress Josephine, and Kissed by Angels, winner of the Gr.3 Derrinstown Stud 1000 Guineas Trial. She is a half-sister to Count Of Limonade (Duke Of Marmalade), a Listed winner placed in the Gr.3 Gallinule Stakes, to Danilova (Dansili), a stakes winner in the US and Group 3-placed, and to Lady Hawkfield (Hawk Wing), dam of Master Apprentice, winner of the Gr.3 Classic Trial.

Third dam Hoity Toity (Darshaan) was unraced.

This is the family of the sires Great Commotion and Lead On Time.

Minding has a yearling full sister to Henry Longfellow and a filly foal by Wootton Bassett, and she has been covered by Gun Runner for 2024.