Following the destruction of his church building in Jeffersonville, Davis began to refocus his efforts elsewhere. He transferred the national headquarters of the Pentecostal Baptist Church of God to Memphis, Tennessee later in 1934. He continued to successfully plant churches and conduct KKK recruitment. In 1936 Davis held meetings nationally, with publicized revivals in New Mexico and Florida. In 1937 Davis held publicized revival meetings in New York City, while he continued to spend much time at his church in Kingsport, Texas. Davis continued to be involved in criminal activities throughout the 1930s and 1940s. He was connected to a scheme in 1938 soliciting money for a fake charity in Indiana and Kentucky in which his brother Dan Davis and four women from his church were arrested in
Newport, Kentucky. In 1939 law enforcement from Arkansas attempted to extradite Davis related to charges of theft of an automobile and a murder in Arkansas. Davis was already out on bond due to charges in Indiana at the time. Davis was located by law enforcement in Kentucky who extradited him to Arkansas. Davis plead with Kentucky authorities claiming he would be lynched by enemies if he was extradited. In Arkansas Davis spent some time in prison. After leaving prison in November 1942, Davis and fellow KKK member, former
Congressman William Upshaw, began working together in California. They set up an organization to collect money to open an orphanage. Davis was accused to stealing money from the charity in 1944 when they failed to use the collections for their stated purpose. He was arrested on three charges of grand theft, petty theft, illegal possession of firearms, and impersonating an
FBI agent. The charges were dropped after Davis had his associates returned funds to several donors. Escaping charges yet again, Davis returned to holding revival meetings and KKK recruiting. By 1950, Davis was part of the executive committee of
Fort Worth Chamber of Commerce in Texas. Davis also remained active as a revivalist during the 1950s. He was working with multiple churches to hold revivals, including the Pentecostal
Assemblies of God. Davis reported that he had a large tent he traveled with to preach from. The William Branham Campaign team published an article publicizing Davis and his revivals in
Voice of Healing in October 1950. Davis was also present and participated in Branham Campaign events during the 1950s and was publicly endorsed by Branham. Davis continued to visit Branham campaign meetings, and be endorsed by Branham multiple times through the early 1960s. Davis became president of the Oak Cliff White Citizens Council in Dallas Texas during the 1950s which he used as a platform to oppose
racial integration. In 1958, Davis was known by law authorities to be Imperial Wizard of the Knights of the Flaming Sword in Texas, a position he had been holding for some time. Internal friction in the Klan led to issues between Davis and others KKK organizations. Opponents burned a cross in Davis's yard prompting Davis to call the police. During questioning by police, Davis said he had been a KKK member for 45 years. He told the authorities that he was second in command of the national KKK organization at the time. Later in 1958 Davis was offered formal leadership of the Texas branch of the KKK headed by Imperial Wizard
Eldon Edwards, which Davis accepted becoming KKK Grand Dragon of Texas. As official leader in Texas, Davis continued to champion efforts to halt integration of schools and support continued
segregation. Davis was successful in rallying support to halt integration of the Dallas schools that year. By 1959 Davis had been elected leader of the national KKK organization and was reporting himself as National Imperial Wizard of the Original Knights of the Ku Klux Klan in
Jonesboro, Louisiana, and conducting rallies in multiple states. In a letter published in
The Waco Citizen on August 15, 1957, Davis advocated for the upholding of segregation and criticized presidential candidate John F. Kennedy for his support of the
civil rights movement. He signed the letter off as "Roy E. Davis Sr., Representative of the U.S. Invisible Empire, Knights of the Ku Klux Klan". He conducted a public KKK recruitment campaign in Arkansas during May. Later that year Davis attended another large rally in Florida where he removed his mask and identified himself again national leader of the KKK. Davis was involved in organizing a national KKK convention in Jacksonville, Florida in 1960. Davis continued to be involved in fraud cases and was named in a case involving a fraudulent check in July 1960. Davis endorsed
Richard Nixon for
President of the United States in the election of 1960. was targeted by the KKK with a cross burning. In 1961, Davis continued holding KKK rallies. The KKK adopted the motto "Yesterday, Today and Forever" in KKK promotional material. Pictures of Davis in the local newspaper showed him demonstrating a Klan salute in full KKK costume. He reported 1000 new members as a result of his campaign in Louisiana. A cross was burnt in the front yard of Congressman
Overton Brooks during a Davis led KKK rally in
Shreveport, Louisiana, in February 1961. Davis was questioned by authorities and denied being involved in the cross burning. Shreveport Mayor
Clyde Fant declared that local authorities would not tolerate KKK activity and called Davis "unamerican" for intimidating a Congressman. Federal authorities launched an investigation following the
cross burning. Davis was arrested, fingerprinted, and warned by authorities that he was not welcome in Louisiana. Davis claimed that he revoked the charter of the KKK unit in Shreveport for conducting the cross burning without his permission. Video footage of Davis was recorded leading anti-communist protests at the
Burl Ives concert on December 30, 1961. Davis continued to be deeply involved in KKK activities following his runs-ins with police, and came under deep scrutiny again following the
assassination of President John F. Kennedy in Dallas in November 1963. Davis had been living in Dallas for several years and was running his faction of the KKK from there. Davis was named in an investigation by the
United States Secret Service as being suspected of authoring a pamphlet entitled
J.F.K Wanted For Treason shortly before the assassination. Davis continued to travel and preach as an evangelist and conduct KKK recruitment in the later years of his life. He died in Dallas on August 12, 1966, aged 76. He was buried in Dallas's
Restland Memorial Park. ==Congressional investigation==