Joseph Sireci disappeared from Philadelphia in May 1983 — thirty years ago. He apparently left home to drive to work. He planned to stop at the laundromat on the way. Sireci never arrived at either the laundromat or his job and was never seen again. His car disappeared with him and it’s never been found either.
A lot of times, when people disappear with their cars and there’s no evidence of foul play but no evidence that they left on their own either, it turns out they accidentally drove off a cliff or into a lake or something. But Sireci vanished from Philadelphia; I don’t think you could get into a fatal car accident there without people noticing.
I don’t have much more than that on his disappearance. There are a few distinguishing characteristics: a scar, a mole, and three teeth missing. His blood type is AB, the rarest kind; this Red Cross chart says only 4% of white people have AB blood.
A note of minor interest: Sireci was last seen sometime between 10:00 p.m. and 4:30 a.m. — an unusually large time frame — and his date of disappearance is given as May 27, but I’m not sure if they mean 10:00 p.m. on May 27 — in which case he might have really disappeared on May 28 — or 4:30 a.m. on May 27 — in which case he might have disappeared on May 26.
He was 63 years old at the time of his disappearance, so even if he didn’t meet with foul play, chances are Sireci isn’t alive today. But he may have children or grandchildren still living who, I’m sure, would like to know his fate.