I'm sorry if I wasn't clear on how to write to the Massachusetts Sate Archives for an index search in the Boston port passenger lists. You need to know the immigration year- I addressed my letter to 'Dear Sir or Madam" and then I provided as much information as I knew on my ancestors that may help them to identify the right people. I did that by giving their full names, birth years and their ages at the time of immigration, what country they were emigrating from, and why I thought they might have come through Boston. I kept it very simple. Just write to the address I sent in my previous post.There is no fee involved.