Columbia river closed for the winter. He was thus engaged for a little over a month, after which he opened his office and began practicing medicine. His career in that professional field was a most notable one. His ability was pronounced. He most carefully diagnosed his cases and his judgment was seldom, if ever, at fault. He did most important work in the frontier community, his professional career covering a period of fifty-three years, during which he kept a complete record of his obstetrical cases, including the names, ages and birthplaces of parents and the names and sexes of children. He officiated at almost six thousand obstetrical cases. He was the loved family physician in many a household. He was most sympathetic by nature, kindly in spirit and these qualities, added to his professional skill and ability, made him most efficient in medical practice. Dr. Blalock also deserves special mention for his contribution to the development of Walla Walla and the northwest. He organized the firm of Blalock, Son & Company for the purpose of building a mill and flume to engage in the manufacture and shipment of lumber, wood, etc., from what is known as the Blalock Mountain. This undertaking did not prove profitable, however, and the company failed for two hundred and twenty-five thousand dollars, with assets of only fifty thousand dollars. The nature of Dr. Blalock at once was manifest, for he immediately assumed the liabilities of the company and in less than eight years paid off every cent, with interest at from fifteen to twenty-four per cent per annum, acting in this matter contrary to the advice of his attorneys. No other course was possible to a man of his straightforward and honorable nature, however. He felt that every cent of his indebtedness should be met and he resolutely set to work to achieve this end, which in an incredibly short space of time he accomplished.