At the turn of the century in a Welsh mining village, the Morgans, he stern, she gentle, raise coal-mining sons and hope their youngest will find a better life.
Life is hard in the Welsh mining town and no less so for the Morgan family. Seen through the eyes of the family's youngest, Huw, we learn of the family's trials and tribulations. Family patriarch Gwilym and his older sons work in the mines, dangerous and unhealthy as it is. Gwilym has greater hopes for his youngest son, but Huw has his own ideas on how to honor his father. Daughter Angharad is the most beautiful girl in the valley and is very much in love with Mr. Gruffydd, who isn't sure he can provide her the life she deserves. Times are hard and good men find themselves out of work and exploited by unseen mine owners.
Arthur Shields (Mr. Parry) and John Loder (Ianto Morgan) fought on opposite sides of the Easter Rising of 1916: Shields fought with the Irish republicans while Loder was a second lieutenant in the British Army. Furthermore, Loder was the son of General William Lowe, the British officer to whom Pádraig Pearse surrendered on April 29, 1916. Shields had previously played Pearse in The Plough and the Stars (1936).
Arthur Shields plays the role of 'Mr. Parry', starring alongside Maureen O'Hara and Barry Fitzgerald, among others.
"How Green Was My Valley" famously beat Orson Welles' Citizen Kane (1941) to a Best Picture Oscar.