Mostyn House School still stands, enlarged and modernized, in the charge of Dr. Grenfell's elder brother, and in it his mother is still the real head and controlling genius.
Thither came Charles Kingsley, Canon of Chester, who married a Grenfell, and who coupled his verse with scientific study and made geological excursions to the river's mouth with the then Master of Mostyn House School.
Matriculating later at the University of London, Grenfell entered the London Hospital, and there laid not only the foundation of his medical education, but that of his friendship with Sir Frederick Treves, renowned surgeon and daring sailor and master mariner as well.
Dr. Grenfell's father, after a brilliant career at Rugby School and at Balliol College, Oxford, became assistant master at Repton, and later, when he married, head master of Mostyn House School, a position which he resigned in 1882 to become Chaplain of the London Hospital.
Algernon Sydney Grenfell and Jane Georgiana Hutchinson, was born on the twenty-eighth day of February, eighteen hundred and sixty-five, at Mostyn House School, Parkgate, by Chester, England, of an ancestry which laid a firm foundation for his career and in surroundings which fitted him for it.
Nor has the strain died out, as is demonstrated in the present generation by many of Dr. Grenfell's cousins, among them General Francis Wallace Grenfell, Lord Kilvey, and by Dr. Grenfell himself on the Labrador in the fight against disease and disaster and distress along a stormy and uncharted coast.
Parkgate, at one time a seaport of renown, when Liverpool was still unimportant, and later a seaside health resort to which came the fashion and beauty of England, had fallen, through the silting of the estuary and the broadening of the "Sands of Dee," to the level of a hamlet in the time of Dr. Grenfell's boyhood.
Of teachers, there was Dr. Grenfell's paternal grandfather, the Rev. Algernon Grenfell, the second of three brothers, house master at Rugby under Arnold, and a fine classical scholar, whose elder and younger brothers each felt the ancestral call of the sea and became admirals, with brave records of daring and success.