Thanks for the feedback! It's great to know others are still interested in these older sirens.
I also appreciate Siren Dude's extra photos - the third photo is particularly atmospheric.
All the siren information is meant for a book of sorts I've aspired to publish. I had also looked into having everything published on a website willing to host my information - but it really depends on who's willing to host/publish. I wanted to avoid the Wikis since they're open to vandalism which can hamper otherwise-good articles.
The Canadian portion isn't completely correct.
The information I posted came from Jim Biersach and "Heralds Of Doom" by Andrew Burtch. The latter is a rather interesting article highlighting Canadian civil defense sirens - they even show a Mobil Directo that was preserved on its pole with a little plaque accompanying it. I was certain everything was right, but I'll save the notes you posted.
Regarding the electric Mobil Directo's performance, several were installed in America and served well. The gas engine models were more difficult to maintain which lead to some examples being withdrawn and converted to electric. There used to be several more Mobil Directos across the country - the snag is that many were replaced as the years went by with newer sirens such as the Penetrator, 2001, and T-128. It's a shame, but it is the very reason I began documenting these older sirens.
Hey SuperBanshee I found one mistake in your story. Pearl Harbor was attacked in 1941, not 1942.
Pearl Harbor was still fresh in everyone's minds during early 1942 - that was the time-frame I was going for. Although America declared war on December 7th 1941, the mass of war efforts didn't roll in until 1942.
I should note that my postings largely serve as previews of what I've written for the siren "book" - the final articles will be even longer and will include more photos. As a result, some of the finer notes end up getting trimmed out of the forum posts. The reason for trimming down is just to avoid running up the post length limit.
I'd rather pace things out and ensure everything documented is correct rather than pump out a book that will require several changes later on. In the meantime, I'm always willing to take in any material other users might have.