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Julia said she hadn't seen her dad teach in 20 years and was so struck by his presence.

\"The fact that [he's teaching] virtually and still engaging and so smart and so quick ... it was just this beautiful moment that I just had to capture,\" she added.

Julia said her mom made her father read every single Facebook comment, which made him tear up.

\"PHOTO:
Julia Krohn
PHOTO: Charles Krohn and his wife Chesley Krohn of Houston, Texas, pose with their children Stuart, Aaron, Adam and Julia, in an undated family photo.
>

\"Professor Krohn was my UST English professor in Fall ‘92 and Spring ‘93,\" one former student wrote. \"And right now he is my daughter’s UST English professor.\"

\"He taught me so much & opened up a new world of literature,\" another commented. \"His passion and dedication were not unnoticed. I’ll never forget my experience w/ Krohn.\"

Julia said her father's computer has since been repaired and he hasn't missed a beat.

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