John (Johann) Laible was born in Baden-Württemberg, Germany. He emigrated to America with his wife and children when he was 34 years old. They settled in Newark, new Jersey. John's wife passed away soon after they arrived and John remarried the next year.

In 1851 he partnered with J. Braun and established a brewery on Belmont Avenue. Laible then wrote to his brother-in-law Wilhelm Konrad Krüger and asked him to send his son to Newark to apprentice in the new brewery. Krüger obliged. John Laible died on the 21st of August, 1862 at age 46 years. He would never see the empire that his modest brewery would become.

The young Krueger he imported from Germany was none-other than Gottfried Krueger, and he was a model employee. Despite being hired to push a broom, Krueger would eventually earn enough to buy the brewery. He guided the G. Krueger Brewing Co. to great prosperity for decades, all the way to Prohibition. The brewery Laible established in 1851 finally closed in 1961.

Ludwig "Louis" Adam was born in Bruchsal, Baden, Germany. He emigrated to America in 1847 and settled in Newark, New Jersey. The following year he married Carolina Müller.

In 1851 he partnered with J. Braun with the intention of forming a brewery on Belmont Avenue. When Braun died suddenly John Liable purchased Braun's share. Together Adam and Liable ran the company for fourteen years. While Adam divested in the brewery in 1866, he continued to work in it until the early 1870s at which point he semi-retired into the saloon business. Ludwig Adam died on March 7, 1894. The brewery he started was purchased by another German immigrant, Liable's nephew Gottfried Krueger. Under Krueger's management the firm became one of the largest of such operations in America, growing in size right up to Prohibition and returning stronger than ever after Repeal. The brewery Ludwig Adam founded finally closed its doors in 1961.

Gottfried Wilhelm Ephraim Krueger (Krüger) was born in Baden Germany. In 1851 he was summoned from Germany by his uncle John Liable in order to work in his brewery in Newark New Jersey. Fourteen years later he bought a partnership in the firm, and at age 38 he was its sole proprietor.

Under Krueger's management the brewery grew into one of the largest in America. Then he further expanded his empire by joining with fellow brewery magnates Peter Hauck and Anton Hupfel to create the United States Brewing Company syndicate of breweries.

In 1914 war broke out in Europe while Krueger was on vacation in Germany. The newly enacted travel restrictions prevented his return. However the brewery continued on, even with it's leader in exile.

The G. Krueger Brewery was ultimately shut down by National Prohibition on January 16, 1920. Krueger eventually returned to America and retired to his summer home in Allenhurst, New Jersey. He died there on November 8th, 1926. he was 90 years of age.