I did social work in the Baltimore slums 1963-1965. It was safe [and extremely friendly people] as you can be except at night - you should go in a group.
The public schools I visited appeared to be still segregated then and the quality of the students` education was very high with high morale as they all wore school uniforms dress code.
But NY City was totally different- If I rode the subway I always had my 250 pound cousin accompany me. We both carried knives.
Oakland in 1965 was safer than today. You could walk unscathed from Berkeley all the way to Jack London Square at midnight and nobody bothered you -
But East Oakland to 98th Ave. was very dangerous coz of drug activity.
By 1969 the Black Panthers had started to raise awareness of Black Pride in these neighborhoods. I will always remember the day that I was stopped at a traffic light, car window rolled down, and a black middle-school-age kid came right up to the car and yelled "honky, honky, honky", to my face. My reaction was to laugh! When I recall that incident I wonder what that kid thought of my response.