Jewish congregations south of Boston will be hosting observances of Yom HaShoah, the day memorializing the systematic killing of Jews during World War II.

Events in Sharon, Plymouth, and Marshfield — incorporating Jewish prayer, reading, and song — welcome all community members, especially younger ones, to remember and learn stories of those who suffered and died under the Nazi regime.

Each observance features someone with a direct connection to the Holocaust, and although their stories are different, their message remains consistent: Retell the story of hate and persecution so it won’t be forgotten — or repeated.

Congregation Shirat Hayam, Marshfield

In collaboration with Duxbury’s No Place for Hate Committee, the congregation invites community members to remember those lost in the Holocaust Friday, April 29, at 7 p.m. at the Sanctuary church. The observance will begin with a presentation by community youths, including a short video, describing what it was like to live as a persecuted person under the Nazi Party.

This will be followed by the personal tale of Aron Greenfield, a Holocaust survivor, now 89. When he was 15 years old, he claimed to be 17 in order to be sent to a labor camp rather than be killed by Nazis as children and the elderly routinely were, according to his daughter, Nadine Greenfield-Binstock. He spent four years in nine different concentration camps across Poland, said his daughter, before he was liberated on May 8, 1945, V-E Day, the last day of the war in Europe, and reunited with his sister, his only immediate family member to survive the genocide.

Congregation Beth Jacob, Plymouth

The town’s No Place for Hate Committee is partnering with the Jewish community to host an observance at 7:30 p.m. Wednesday, May 4, the date on which Yom HaShoah begins in Israel. A cellist, guitarist, and brass quintet will perform, and clergy members will read passages and accounts related to the Holocaust.

Harry Shamir will tell his story of survival. When he was 3½ years old, said his wife, Barbara Aharoni, he was slipped under a fence at the French border. He and his parents were reunited in Switzerland, where they lived through the war, she said. She said his maternal grandparents were sent to Auschwitz and were never heard from again.

Temple Israel, Sharon

Congregations in Sharon, Stoughton, Canton, Easton, Norwood, and Brockton have been invited to come together in Sharon Wednesday, May 4, at 7 p.m. to remember the events of the Holocaust together. Holocaust survivor Janet Applewood and Stuart Salzberg, son of the late survivor Lewis Salzberg, will speak.

Applewood, only 4 years old when the war began, said she survived under the care of family and strangers while her parents were persecuted in ghettos and Nazi concentration camps. All her relatives other than her father, who identified her in an orphanage after the war, were killed.

Stuart Salzberg said his father was a young adult when he was brought to a Jewish ghetto in 1939, where he lived until 1944 before spending time in two concentration camps. Early on during the war, he was separated from his brother, Morris, who survived 33 concentration camps over five years. The two were only reunited by chance at war’s end, said Salzberg, who added that his father never spoke of his wartime experiences until Stuart was a young man himself. It was the first time, Salzberg said, he had seen his father cry.

Bret Hauff can be reached at bret.hauff@globe.com. Follow him @b_hauff.