Electrum is software installed on a computer. It is not an organization with information about your husband's or any one else's wallets. If you have neither the seed nor the password there isn't much that we can do. Even the wallet recovery people need some idea of what the password is before they can attempt a bruteforce of the wallet encryption.
You should search for the seed. He may have written it down somewhere. It consists of 12-13 random English words.
This is true. However, if he passed away in June last year then the seed should be 12 words long since the 13 word seed wasn't implemented until version 2.0 which was released in February of this year.
An example seed might look like this:
If you cannot find the seed then the only other option would be to attempt to attempt to figure out the password (assuming that you still have access to the encrypted wallet). This won't be easy but in most cases, it should still be significantly easier than attempting to brute force the seed itself. If you know any of his other passwords (e.g. for email accounts, forum accounts, etc.) then you should definitely try them first.