market recovered. In 1924, John M. Hancock became the first non-family member to join the firm, followed by Monroe C. Gutman and Paul Mazur, who became partners in 1927. By 1928, the firm had moved to its One William Street location. In the 1930s, Lehman underwrote the initial public offering of the first television manufacturer, DuMont Laboratories, and helped fund the Radio Corporation of America (RCA). It also helped finance the rapidly growing oil industry, including the companies Halliburton and Kerr-McGee. In the 1950s, Lehman underwrote the IPO of Digital Equipment Corporation. Later, it arranged the acquisition of Digital by Compaq. An evolving partnership (1969–1984) Robert Lehman died in 1969 after 44 years in a leadership position for the firm, leaving no member of the Lehman family actively involved with the partnership. At the same time, Lehman was facing strong headwinds amidst the difficult economic environment of the early 1970s. By 1972, the firm was facing hard times and in 1973, Pete Peterson, chairman and chief executive officer of the Bell & Howell Corporation, was brought in to save the firm. Under Peterson's leadership as chairman and CEO, the firm acquired Abraham & Co. in 1975, and two years later merged with Kuhn, Loeb & Co., to form Lehman Brothers, Kuhn, Loeb Inc., the country's fourth-largest investment bank, behind Salomon Brothers, Goldman Sachs and First Boston. Peterson led the firm from significant operating losses to five consecutive years of record profits with a return on equity among the highest in the investment-banking industry. By the early 1980s, hostilities between the firm's investment bankers and traders prompted Peterson to promote Lewis Glucksman, the firm's President, COO and former trader, to be his co-CEO in May 1983. Glucksman introduced a number of changes that had the effect of increasing tensions, which when coupled with Glucksman’s management style and a downturn in the markets, resulted in a power struggle that ousted Peterson and left Glucksman as the sole CEO. Upset bankers, who had soured over the power struggle, left the company. Stephen A. Schwarzman, chairman of the firm's M&A committee, recalled in a February 2003 interview with Private Equity International that "Lehman Brothers had an extremely competitive internal environment, which ultimately became dysfunctional." The company suffered under the disintegration, and Glucksman was pressured into selling the firm. Merger with American Express (1984–1994) Shearson/American Express, an American Express-owned securities company focused on brokerage rather