In the same house, we believe, that had been occupied by Penn[146], resided an author who must not be passed over in a work of this kind; to wit, the indefatigable and honest antiquary, Dr. Birch. He came of a Quaker stock. Birch astonished his friends by going a great deal into company; but the secret of his uniting sociality with labour, was his early rising. This, which appears to be one of the main secrets of longevity, ought to have kept him older, for he died at the age of sixty-one: but he was probably festive as well social, and should have taken more exercise. Being a bad horseman, he was thrown on the Hampstead road, and killed on the spot; but the doctors were uncertain whether apoplexy had not a hand in the disaster. In speaking of Birch, nobody should omit a charming billet, written to him by his first wife, almost in the article of death. The death took place within a year after their marriage, and was accelerated by childbed. "This day I return you, my dearest life, my sincere hearty thanks for every favour bestowed on your most faithful and obedient wife. "_July 31, 1729._" "HANNAH BIRCH."[147] In Norfolk Street, for upwards of thirty years, lived Dr. Brocklesby, the friend and physician of Dr. Johnson. Physicians of this class may, _par excellence_, be styled the friends of men of letters. They partake of their accomplishments, understand their infirmities, sympathise with their zeal to do good, and prolong their lives by the most delicate and disinterested attentions. Between no two professions has a more liberal and cordial intimacy been maintained than between literature and medicine. Brocklesby was an honour to the highest of his calling.