My grandfather's uniform: can anyone help identify this unit patch and history, etc?

https://en.wikipedia.org/wiki/ADSEC

Advanced Section
Communications Zone
European Theater of Operations, U.S. Army

Thank You, Sir.

I know, I'd of course heard the story many times, the thing is, in asking for records for my uncle and my wife's dad, both ww2 army, some stuff, actually fairly appreciable had innfact neenmlost. The thing was, I'd gathered in yakking with the NARA and or NPRC staff at various times that their SVC ofc reps can apparently send out to the svcs for microfilm records themsvcs have, to try to reconstruct a given file, whether personnel or medical, so far as humanly possible. We think my wife's dad's enlisted stuff might have been totally lost, possibly, though we had me see his ww2 army serial number or ASN listed on the NARA NPRC website, I've wanted to try to see if any of it still exists, obviously. Also, for my uncle, however, considerable stuff was still there we were sent, so, in any event, despite the fire, the whole thing isn't totally hopeless, apparently, hope that was of interest, many thanks.

Capt Daniel Goodman I have been thinking about doing this for my father who went to Japan as part of the occupation force and my grandfather who fought in WWI. What information do I need to have to request their records? Both are deceased so I cannot get their permission. I realize I could probably find out by going on the site so admittedly, this is being somewhat lazy by asking you. Do you also know if I can then request their medals they earned or would I have to purchase those separately?

Hi, sir, I saw, so far as I know, given what we got for my dad's stuff, my uncle's, and my wife's dad, step dad, and brother, no, I don't think so. Obviously, I could well be wrong, however, we've actually been sent decorations from NPRC in St Louis for free sevl times, for all or most of them. The eVetRecs Java applet site is actually reasonably easy to use, though it does tend to have a few eccentricities, once in awhile. The volume of text allowed tends to be quite limited, so, what I've often found the best way to send NPRC requests using it is to type out what you want to ask on, e.g., Wordpad, not Notepad, on Windows machines, as Wordpad, I'm fairly sure, will actually give you a word or character count, and takes less time that word, or OpenOffice, though you could use those also, of course. That being said, then, once you're done, paste what you've typed into the Java applet window, just don't close the Wordpad copy without saving it someplace, just in case something goes wrong. Now, also, the word or character count feature on the Java applet, I've found, isn't always exact, for some reason, so, you might well need to abbreviate considerably, leaving out spaces, etc., so as to fit what to you're trying to get across. Also, once you submit text, you might find, due to that inexactitude, you might need to adjust the content sevl times, till the Java applet would be satisfied that what you've typed is short enough. Also, you need to give as much info as you can for the prelim questions, before the text section, as to svc, rank, active, reserve, guard, date enlisted, serial number or social, whether they were enlisted, warrant, or commissioned, etc. Next, you must, must, muast, sign and date the final printout form from the Java applet, showing the car code and corresponding number for your NPRC request, as well. I generally email the number to myself, as well as, if possible, scan in and or save on a hard drive, all requests we send NPRC, as without signing and dating the form before you fax it to their main fax line, and without the number there's absolutely, positively zero chance it'll ever be found, if you need to call them. We've also called there, and spoken with them switchboard staff, however, all generally they can do is pull your number, and see how far along it is. If you need to call the NPRC staff, we've actually been able to do that, they have what are termed reference cores, where the actual file info is kept, they just built that whole brand new bldg recently, however, that was their terminology, last we called them. They're all quite helpful, incl when I searched for my mom's dad's stuff also, I had no serial number, we knew he was ww2 USMC noncombat, and his DOB, little else, we got help from a vet group and the NPRC staff, as well , they did find his stuff, eventually. Once they get a request, they generally send an acknowledgement letter, then you need to give them maybe a couple of months, depending on the complexity of the request. If you want personnel and medical files, you need to ask for them separately and explicitly. Also, you can also call NARA over NPRC for more help if you need it, as well. We've never had to pay anything, and, even for my uncle, mymdads sister's husband, we didn't need to go to his sons, my cousin, they have some time limit after which a veteran who's passed away can have records released to family interested in seeing their stuff, after some time period has passed, so, the Java applet does ask your relation to the deceased, if the vet is living and competent, then, of course, you might well need to get a release, however, for your dad and grandfather, I shouldn't think so, assuming, of course, that they've passed away, which I'm assuming is the case here, please of course correct me if I'm wrong. The medals and decorations as listed on an army adjutant genl ofc or AGO discharge, or DD214, no, those we've never been charged for. They provide for duplicate flags, I also got a USMC duplicate discharge for my maternal grandfather as well. One could, I think, also request cold war certificates, as well as the presidential memorial letters, the former I got for mine and my dad from the armymofc that does those, the latter NPRC actually sent for my wife's dad, step dad, and brother, in point of fact. Hopefully, that all helps, if you need more, please of course, just say, and I'll try to elaborate, so far as I can, by all means, many thanks.

https://vetrecs.archives.gov/VeteranRequest/home.html

Here's the link, hopefully, it'll upload, otherwise, just look for it using Google, you should find it quite easily.