Zubia and a new shelter manager, Troy Campbell, who stepped into the job last week, are part of a growing number of men who are becoming engaged in the effort to combat violence toward women, as well as child abuse and other types of relationship abuse. They hope to ensure that Esperanza — which opened one of the nation’s first safe havens for abused women in the 1970s and pioneered treatment services for offenders in the 1990s — remains a leader in the movement against family violence by enlisting more men in the effort.