This article interviews the girls playing the orphans and their parents/guardians.
Thanks for posting! This was such an interesting read.
Crazy that they were filming until 3 a.m.
When it was discovered that a clause in the New Jersey child labor laws prevented the children from working at night, the legislative obligingly changed the law and Gov. Brendan Byrne signed it the day before filming was due to begin. Now the children are allowed to work their five consecutive hours at any point in the day. In California, where interior studios can provide day or night as required, they are not permitted to work much later than 10:30 p.m. without special exemptions.
In Hollywood many times filters would be used to film night time scenes during the day for shows like "The Waltons." It was against the law for minors to work that late.