(CNN) -- A former teacher in Oklahoma has been charged with sending lewd images of young female students to a retired professor in Pennsylvania, authorities said Thursday. Kimberly Ann Crain, who taught third grade in McLoud Public Schools, faces 23 criminal counts, including manufacturing and possessing juvenile pornography, distribution of juvenile pornography and lewd molestation, according to a Thursday filing in Pottawatomie County district court. The alleged recipient of the photos and videotapes -- sent via e-mail and Skype -- was identified as Gary Joseph Doby. Students allegedly knew him as "Uncle G," according to authorities. The retired Bloomsburg University professor also has been arrested, according to Oklahoma City FBI special agent Clay Simmonds.
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Former teacher accused of taking lewd photos of young Oklahoma girls
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Kimberly Ann Crain is accused of sending them to a retired professor in Pennsylvania
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Crain and Gary Joseph Doby face multiple criminal counts in Oklahoma
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"Be kind and considerate to my family," Doby says after arraignment
An FBI agent said that in some chats, @placeholder identified some of the students by name and described how "he liked the features of their private parts and indicated that he wanted to see them nude.