 Later Webb received a threatening phone call which she thought was from Wilkerson, but that was not confirmed, and it may have been from a government agent.In any case, the call contributed to driving apart outspoken feminists in the national SDS and people who put anti-racist and anti-war work before feminism and went toward the Weathermen.In 1963, Wilkerson was arrested in Chester, Pennsylvania for distributing handbills advertising a mass meeting to discuss the planned boycott of the public schools.