Two Greensburg-area people who had been considered missing have been found in South Carolina, and both are safe, Greensburg police said. Police said credit card purchases allowed them early Friday evening to track down Amanda Caldwell, 29, of Greensburg and Joseph Zyvith, 30, of Hempfield. Neither had been seen or heard from since early Thursday. Family members and co-workers of Caldwell’s at Senior Life in Greensburg reported her missing Thursday after she did not show up for work, police Detective Sgt. John Swank said. Zyvith also was reported missing by family. He reportedly called off work at General Carbide in Hempfield about 12:45 a.m. Thursday, Swank said. "It’s very out of the ordinary for her,” Swank said. "They both have good jobs, and not showing up is really out of the ordinary for both of them.” Caldwell told people Wednesday that she was meeting a man for a first date, Swank said. He couldn’t say if Zyvith was that man. Swank said Friday evening that police were continuing to investigate the circumstances that resulted in the pair turning up in South Carolina. "We’ve been tracking their movements through the use of credit cards all day,” he said. "We’re still trying to sort through the details.” He said family members were notified that the pair are safe. Investigators received word that Caldwell’s bank card was used twice Friday — at 3:57 a.m. in Bastian, Va., and then at 12:24 p.m. in Columbia, S.C., Swank said. "Both purchases were made at gas stations,” Swank said of the transactions along the Interstate 77 corridor. Late Friday afternoon, investigators said an employee at the Virginia truck stop where the first purchase was made reviewed video surveillance and reported "a couple, together, in a red car” bought gasoline at the time in question and that the pair matched the descriptions of Caldwell and Zyvith. Police also obtained a security video from the Speedway station on Route 119 in Hempfield, south of Greensburg, where a couple matching the descriptions of Caldwell and Zyvith filled a car with gasoline about 4 a.m. Thursday. Investigators Friday said they found blood in a vehicle parked outside Caldwell’s South Maple Street apartment. Police Capt. Robert Stafford confirmed that blood was detected on the steering wheel of Zyvith’s vehicle, a Toyota Avalon, that was parked behind Caldwell’s residence. "That vehicle has been towed from the scene and is undergoing forensic analysis by Westmoreland County detectives,” Stafford said. The cars belonging to Caldwell and Zyvith appeared to have been "switched out” sometime Thursday, police said. When Caldwell’s family went to her apartment earlier in the afternoon, Zyvith’s Toyota was not there but Caldwell’s vehicle was, police said. "But about 5 p.m. Thursday when we went there, Zyvith’s vehicle was parked there and Amanda’s car was not there,” Swank said, "so possibly sometime between 3 and 5 p.m. Thursday, someone went back there.” Swank said police searched Zyvith’s apartment Friday afternoon on a warrant, "and it appears he didn’t bother to pack anything.” Police also searched around the Zyvith family hunting camp in Potter County but did not find the pair, Stafford said. He said police tracked Caldwell’s cellphone, "and it pinged back to her apartment.” "That’s very strange, too,” Stafford said. "According to her friends, she never went anywhere without her telephone and is very active on social media.” Before authorities located the pair, the last contact anyone had with Caldwell was a friend on Snapchat about 12:30 a.m. Thursday. Stephanie Deibert, a neighbor at Zyvith’s Hempfield apartment complex, said she waved when she saw him leaving in a red car with a woman one day this week. Zyvith has a silver car, she said. "I pulled in, and they were pulling out,” she said, adding that she did not remember which day she saw them. Deibert has known Zyvith for a few years and described him as an avid fisherman who is a positive, friendly person. She was shocked to learn of the situation. "Maybe he just wanted to disappear for a little bit,” she said. Staff writers Renatta Signorini and Jeff Himler contributed to this report. Paul Peirce is a Tribune-Review staff writer. You can contact Paul at 724-850-2860, ppeirce@tribweb.com or via Twitter @ppeirce_trib. You can contact Renatta at 724-837-5374, rsignorini@tribweb.com or via Twitter @byrenatta. Paul Peirce is a Tribune-Review staff writer. You can contact Paul at 724-850-2860, ppeirce@triblive.com or via Twitter .