This paper describes a comprehensive program to provide on-site services to poor families following emergency relocation caused by various catastrophes. When the report was prepared, the program involved 75 to 125 families (primarily black and Spanish-speaking) temporarily living in a hotel. The program's objectives were to (1) develop coordinated agency efforts to provide on-site medical, welfare, educational, recreational, and mental health services; (2) help families develop coping skills for the period of relocation, including the eventual move to permanent housing; (3) study the effects of trauma on children and families and provide mental health crisis intervention; and (4) determine special needs that might require new approaches. Interested community groups, public and volunteer agencies, and the hotel families operate the program. A day care center staff works with preschoolers and parents to prevent potential developmental damage to traumatized children. Common responses of the children and their parents (fantasies and behavior patterns) are noted and discussed in terms of the effects of separation from familiar objects and surroundings. It is concluded that the on-site program has been initially successful in alleviating distress and preventing further deterioration. (DP)