The number must have run to several thousand. 679 crew were lost, the big majority from Southampton and especially from a suburb called Northam, which was right by the docks. In some streets, there was hardly a house that was not affected in some way. School teachers noticed dozens of children missing. See Titanic Voices for accounts of the sufferers. If there is anything like a correct number of widows and orphans it would be in the records of the Mansion House fund, which gave out thousands of pounds over many years. We used to have a member called Andrew Williams, who is an expert on the fund, but I've not heard from him for quite some time. Does anybody have news of him?
Btw is that "Titanic Voices" authored by Donald Hyslop or other book with the same name authored by Hannah Holman ?