text: This is the emotional moment an 83-year-old grandfather saw an image of his mother for the first time in 70 years. Thomas Cain's mother Ora Mae died in 1943, when he was just 12 years old, and he was left thinking that there were no surviving photographs of her. But this footage, recorded in 2013, shows the moment his enterprising granddaughter, Andrea Ferrell, 29, gave him an old photograph she acquired from a distant relative. Shock and tears: An emotional Thomas Cain is shown, left, looking at the old photograph, while to the right is his shocked expression once he realizes what it is . In the video she hands Mr Cain her present, which dates from the 1920s and shows his mother as a teenager, while his family encourage him. When his daughter, Joyce, explains by saying 'That's your momma', a shocked Mr Cain can only exclaim 'what?!' As the realization dawns on him Mr Cain chokes up and starts crying. He asks 'Where'd it come from?', prompting Ferrell to explain she found it with a distant relative in Florida after appealing for information in her local paper. Long-lost: Mr Cain poses above with the old photograph. He had assumed there was no photographic record of his mother, who died when he was just 13. His mother, Ora Mae, (detail right) is thought to be a teenager in the image, which dates from the 1920s . Gift: Andrea Ferrell, left, hunted down the old image for her beloved grandfather . Writing about the discovery on social media, Ferrell described her 'Pawpaw' as 'the greatest, most humble, God-fearing, family-oriented, loving man in the entire world' adding that 'he deserves' the happy surprise, which took two years to track down. Ferrell also explained that her quest for more photographs of her ancestors is not yet over. In a post she said she is also hunting down pictures of Mr Cain's father, Henry, who also died when he was young. Ferrell told DailyMail.com she has managed to track down images of many of Mr Cain's other relatives, including siblings, cousins, aunts and uncles - but that Henry Cain remains elusive.
target: Thomas Cain's mother Orae Mae died in 1943, when he was just 13 .
  He thought that no photographs of her had survived .
  Granddaughter Andrea Ferrell, 29, tracked one down, and filmed the reveal .
  Emotional Mr Cain sheds tears as he looks on image from the 1920s .
  Ferrell is now looking for other photos - especially Mr Cain's father .
  Can you help Andrea Ferrell track down the photograph of her great-grandfather, Henry Cain? Email her at andreavferrell@gmail.com .