HIAS also searched for relatives of detained immigrants in order to secure the necessary affidavits of support to guarantee that the new arrivals would not become public charges. Lack of such affidavits and/or material means impacted a large number of immigrants: of the 900 immigrants detained during one month in 1917, 600 were held because they had neither money nor friends to claim them. Through advertising and other methods, the society was able to locate relatives for the vast majority of detainees, who in a short time were released from Ellis Island.