Alonzo J. Tullock, late of Leavenworth, was in his day one of the best known citizens of that city, and one of the leading civil and constructive engineers in the Middle West. He was born on a farm near Rockford, Ill., in the year 1854, and passed his boyhood in that neighborhood. After attending the public schools he prepared himself to enter college, and graduated with high standing in the civil engineering course at the University of Michigan at Ann Arbor. Immediately upon receiving his degree he went to Chicago to accept a position with a railroad company as assistant engineer and continued in this capacity until 1879, when he came to Leavenworth to enter the employ of Insley & Shire, at that time proprietors of the Missouri Valley Bridge Company & Iron Works. The company was not then in a prosperous condition, and for several years had been struggling to maintain an existence. Mr. Tullock's technical knowledge of engineering, coupled with his sound business judgment and fine executive ability, finally brought the concern through the crisis and placed it upon a firm financial footing. After several years with Insley & Shire, as their consulting engineer and superintendent, he purchased the interests of his employers, becoming the owner and manager of the entire business. He was now in a position to carry out his long cherished desire to expand his field of operations, and by reaching out after new contracts he soon made the Missouri Valley Bridge Company known in a number of states. As the head of the concern Mr. Tullock designed and built a number of the largest bridges over the Missouri river, as well as many bridges over the principal streams of the South and West. Probably his most pretentious work is the large steel wharf at Tampico, Mex., which he erected for the Mexican government at a cost of over $2,000,000. This great structure, and the numerous bridges erected by his company, stand as monuments to his engineering skill, his industrial energy and his integrity as a man who always executed his contracts to the letter, and who never knowingly permitted a piece of imperfect work to leave his shops. Besides his large interests as the head of the bridge company, Mr. Tullock was a director for some time of the First National Bank of Leavenworth. He was a public-spirited citizen, always a willing helper to any and every movement for the civic and material advancement of his adopted city. In connection with his bridge building business he had extensive dealings with the Carnegie Steel Company and became personally acquainted with Mr. Carnegie. It was through this acquaintance that the city of Leavenworth secured the Carnegie Library, another evidence of Mr. Tullock's interest in the city. After an illness of about a year, Mr. Tullock died at his home in Leavenworth, on July 21, 1904, leaving a widow, a son, Hubert, and two daughters, Florence and Lucy.