Twin school teacher sisters Opal McCarl, left, and Olive Miller were pictured here together for the last time in 2015 before Opal moved to South Carolina six years ago. Despite the distance, the sisters have remained close.

This is an excerpt from a larger article that appears in Sunday's Butler Eagle. Subscribe online or in print to read the full article.On April 21, 1921, a doctor came to Carrie and Ralph Gilchrist's farmhouse on Harmony Hill near Harrisville to deliver what they assumed was just one baby.“The doctor told Dad to get another blanket; there's another one coming,” said Olive Gilchrist Miller's daughter, Sue Hovis of Polk. “They paid five dollars for Opal and Mom was free!”Even at birth, Olive was not in a hurry to leave the womb, while her sister Opal was the first to pop out and explore.Olive Miller, of Franklin, and her sister, Opal McCarl of Myrtle Beach, S.C., marked their 100th birthdays this year.Both career educators took after their mother, who received a teaching certificate from the-then Slippery Rock Normal School in 1910. But their distinct preferences led to unique experiences.“They are totally different personalities,” said Opal's daughter, Joan Gilchrist Dudek, of Myrtle Beach, S.C. Even as teens on the farm, Olive stayed inside, cooking and canning with her mother, while Opal was outside milking cows and pitching hay with her father.But their mother, who made all their clothes, dressed them alike anyway.

This is an excerpt from a larger article that appears in Sunday's Butler Eagle. Subscribe online or in print to read the full article.