At the expiration of his imprisonment, Mr. Grimes returned to Washington, and employed himself in driving a furniture car, and jobbing about the city. Feeling himself called to preach, he underwent the required examination, received a license, and, without quitting his employment, preached as occasion offered. Not long after this, he removed to New Bedford, Mass., where he resided two years. There was in Boston a small congregation, worshipping in a little room, but without a regular preacher. An invitation was extended to Mr. Grimes to become their pastor. He accepted, came to Boston, and, under his ministration, the society increased so rapidly that a larger house was soon needed. A lot was purchased, the edifice begun, and now they have a beautiful church, capable of seating six or seven hundred persons. The cost of the building, including the land, was $13,000; all of which, except $2,000, has been paid. We need not say that this was accomplished through the untiring exertions of Mr. Grimes. Besides his labors in the society, he was often engaged in aiding fugitive slaves in the redemption of their relations from the servitude of the south. During his fourteen years' residence in Boston, he has had $6,000 pass through his hands, for the benefit of that class of persons. In action he is always-- "Upward, onward, pressing forward Till each bondman's chains shall fall, Till the flag that floats above us Liberty proclaims to all." In 1854, Mr. Grimes became conspicuously connected with the fugitive slave Anthony Burns. Mainly through his efforts the latter gained his freedom. The pastor of the Twelfth Baptist Church is, emphatically, a practical man. Nearly all public meetings are held either in his church or vestry, he taking a suitable part in every thing that tends to the welfare of his race. "Brother" Grimes is above the middle size, good looking, has a full face, a countenance which has the appearance of one who has seen no trouble, and rather more Anglo-Saxon than African. He is polite in his manners, and genteel in his personal appearance. As a preacher, he is considered sound, and well versed in theology. He is regarded as one of the ablest men in prayer in Boston. His sermons are characterized by deep feeling and good sense. No man in the city has fewer enemies or more friends than Leonard A. Grimes. PRESIDENT GEFFRARD.