No such organization.
Found it right at the top of a Google search: "Lincoln Republicans of Orange County" (and it's called the "Lincoln Club," not "Lincoln Republicans").
"The Lincoln Club is the largest and most active political club in the United States. Its has shaped California and national politics for almost forty years. Many of southern California's most successful business leaders are among its members.
"Like many good stories, The Lincoln Club of Orange County's begins with bloodshed. In 1962, Richard Nixon returned to California to run for Governor. He was considered a heavy favorite to beat Governor Pat Brown, but he had to get by the primary challenge of Orange County native Joe Shell in order to win the nomination. The primary campaign was nasty. Many observers believed that, even though he survived to win the nomination, it was because Nixon had been so bloodied in the primary that he lost the general election against Pat Brown.
The business elite of Orange County, many of whom supported Nixon, believed that they should try to impose a business-like order on state politics and avoid such primary battles. But, instead of shunning Shell supporters, they reached out to them. The Nixon boosters offered the Shell men membership in the new club.
Its founders included the most prominent business leaders in Orange County, including Dr. Arnold O. Beckman, the founder of Beckman Instruments, Walter Knott, the founder of Knott's Berry Farm, and Si Fluor of the Flour Corporation.
The club membership is still comprised of the most public-spirited and prominent business men and women in our community today, including Donald Kennedy of First American Financial Corporation, William Foley of Fidelity National Title Company, Donald Sodaro of Hanford Hotels, and George Argyros of Arnel Development. The club has approximately 300 members.
Hundreds of candidates throughout Orange County, our state, and across the nation owe their start to the Lincoln Club. The club has played a pivotal role in the candidacies of Richard Nixon, Ronald Reagan, Pete Wilson, and George Deukmejian. Richard Nixon and John Wayne were once members.
The Lincoln Club works to reduce the power and scope of government. It pushes for lower taxes, smaller bureaucracies, and more freedom for us all.