Mother and daughter have a close encounter with a slow, low classic saucer.

This is an incident that happened to my mother and sister around August 1965. I'm guessing at the date, but my mom was teaching my sister to drive so I believe it was the autumn before my sister turned 16.  I would be able to ask my sister to verify the year and month if the researchers here would like me to.  Neither my sister nor my mother ever officially reported this sighting to anyone, (outside of family and friends) at any time, but, even after all these years, I've decided it should be on the record.
 Roseville, Michigan, near Detroit. It was late evening, maybe 10 or 11pm. Because there was very little traffic my mother thought it would be a good time to have my sister practice her driving. My sister drove around on some side streets near our home then drove toward a near-by school, Eastland Jr. High, to practice parking in their lot. As they approached, my mother suddenly noticed a large, metallic "saucer", with rectangular windows hovering very low over the school and parking lot. It was lit up inside. My mother yelled to my sister to stop the car. My sister hadn't yet seen the UFO and assumed she was about to hit an animal or something so she slammed on the brakes. My mother jumped out of the car and walked toward the craft. When my sister got out of the car she spied it and grabbed my mother's arm trying to stop her from getting closer. My sister kept saying, "what is it?", my mom kept saying, "You can see it, you tell me." My mom then told my sister to go knock on the door of a near-by house to try to get another witness but my sister refused to leave her side. My mother said it made no noise, my sister says she heard a low hum. My sister says she saw a "shadowy" figure in one of the windows as it slowly rotated, my mother insists there was no figure. After hovering there for several minutes, it started to slowly move away.  My mother told my sister to get back in the car, and with my mother now at the wheel they tried to follow the UFO. It finally disappeared behind some trees. My mother said that was the last time they saw it, my sister said she actually saw it zoom up into the sky and disappear into space.
 I think they also reported an antenna with a light on it attached between a couple of the windows.
 They both repeated this story to me and others many times over the years. They always completely agreed about all the main parts of the story. They always disagreed about only these three things; the figure, the hum and the zooming away. Their stories never wavered dispite a falling out that had them not speaking for years. My mother passed away in 1995 but my sister still tells the story.
 One other thing to note about this. One day in 1979 I brought my mother her mail. It included the April edition of OMNI magazine which my mother subscribed to. There was a drawing of UFO's on the cover. As my mother flipped through the magazine she suddenly said "Oh my God, that's it!". She showed me a picture then called my sister's husband (they weren't speaking during this time) and told him to go buy the magazine and give it to my sister. An hour or so later my sister called and actually talked to my mother about the photo. They both agree this was what they saw. I have my mom's copy of the magazine still but it's packed away somewhere. I can find it and pinpoint the exact page and picture if asked or scan and email it. If I remember correctly, that photo was said to have been taken around the same year and maybe in the same area that they saw the craft.
Witness indicates that the date of the sighting is approximate.  PD