Stewards are required for the burial ceremony of six Holocaust victims at Bushey New Cemetery on Sunday (9.30-11.30am).
Hundreds of people are expected to attend the specially organised event.
The United Synagogue made an urgent request for volunteers from 9.30am to 1.30pm on social media earlier this week.
Human remains from five adults and a child have been stored at the Imperial War Museum since 1997.
The IWM decided to return them to the Jewish community last year.
The United Synagogue Burial Society collected the remains ahead of the funeral yesterday to Bushey New Cemetery where they will be prepared for burial.
A small ceremony took place in the presence of senior officials from IWM together with US President Michael Goldstein, Rabbi Nicky Liss, Chair of the Rabbinical Council of the US and representatives from the Office of the Chief Rabbi and Burial Society.
Short speeches were given by Jon Card, IWM and Mr Goldstein.
Rabbi Liss led the Holocaust memorial prayer.
“Jewish people carry with us all the fragments of our past, the broken lives, the anguished deaths,” said Rabbi Liss. “For we refuse to let their deaths be in vain. They, our past, live on in us as we continue the Jewish journey to the future, to hope, and to life.
“And so it is with the victims of the Shoah, the lost lives, the broken communities, synagogues desecrated and set on fire, the sacred scrolls burned and turned to ash, the children, a million and a half of them, an entire murdered generation. What our enemies killed we keep alive in the only way we can, in our minds, our memories and our memorial prayers.”
Those wishing to volunteer should e-mail the US at firstname.lastname@example.org