Kami Rita first scaled Everest at age 24, and has made the trip nearly every year since then.
Lakpa Sherpa, 44, the world's most successful female Everest climber, also made her ninth climb to the top of the mountain on Wednesday - breaking her own record set a year ago.
For the 44 year-old Lhakpa is the ninth time on the highest point of the earth, a female record that beats the record set by herself a year ago.
The team reached the summit on Sunday afternoon while fixing ropes for foreign climbers, who will begin this week to ascend the mountain.
He has already climbed most of the peaks above 8,000 meters including K2 and Annapurna, among others.
Both of the other previous record holders are retired from climbing.
A Sherpa guide has been missing on Everest's southern side in Nepal since Monday, said Mingma of Seven Summits.
Sherpa is a single mom to three kids and lives in Hartford, Connecticut where she works as a dishwasher at the local Whole Foods.
This year, her climb was sponsored by the outfitter Black Diamond, who provided gear and monetary support. He first climbed Mt. Everest in 1994.
She first climbed Everest from South Col in 2000 and since has climbed from the North Col eight times.
Shrestha said a total of 94 climbers reached the summit on Wednesday because of good weather conditions.
Nepal has issued 346 permits to mountaineers for this year's spring climbing season, which runs from mid-April to the end of May. He lost his legs after a failed Everest attempt in 1975.