He was the son of a country manager named Samuel Jerrold, and was born in London on the 3d of January, 1803. His father was for a long time manager of the seaport theatres of Sheerness and Southend,--which stand opposite each other, just where the Thames becomes the sea. Douglas spent most of his boyhood, therefore, about the sea-coast, in the midst of a life that was doubly dramatic,--dramatic as real, and dramatic as theatrical. There were sea, ships, sailors, prisoners, the hum of war, the uproar of seaport life, on the one hand; on the other, the queer, rough, fairy world (to him at once fairy world and home world) of the theatre. It was a position to awaken precociously, one would think, the feelings of the quick-eyed, quick-hearted lad. No wonder he took the sea-fever to which all our blood is liable, and tried a bout of naval life. At eleven years of age he became a middy, and served a short time--not two years in all--in a vessel stationed in the North Sea. Naval life was a rough affair in those days. Jerrold's most remarkable experience seems to have been bringing over the wounded of Waterloo from Belgium; which stamped on his mind a sense of the horrors of war that never left him, but is marked on his writings everywhere, in spite of a certain combative turn and an admiration of heroes which also belonged to him. To the last, he had an interest in sea matters, and spoke with enthusiasm of Lord Nelson. But the literary use he made of his nautical experience ended with "Black-eyed Susan." He was a boy when he came ashore and threw himself on the very different sea of London; and it is the influence of London that is most perceptible in his mature works. Here his work was done, his battles fought, his mind formed; and you may observe in his writings a certain romantic and ideal way of speaking of the country, which shows that to him it was a place of retreat and luxury, rather than of sober, practical living. This is not uncommon with literary men whose lot has been cast in a great city, if they possess, as Jerrold did, that poetic temperament which is alive to natural beauty.