Hey y'all. So, I've been working on a website that conjugates the verbs for dialectal forms as well as the Caighdeán, since I've found internet resources to be lacking for dialectal usages (Wiktionary can be good, but often is very vague about which dialect uses what form, etc.) and I always stress dialectal stuff.

I'm wanting to pull my information from Leabhar Mór Bhriathra na Gaeilge with some changes (like showcasing that gabh has supplanted téigh in the future tense in some dialects). Would I be able to do this without worrying about copyright infringement? This is a personal project to help fill out a portfolio. Would I be able to pull from there and cite it, or would I need to traverse all the sources that Dr. Hughes pulled from?

Also, if anyone would like to check my data before I upload it to confirm (say, I'm not missing where a verb has been supplanted), I'd appreciate it as well.

I may not have fully understood your question, but I would be wary of reverse-engineering someone else's research and not citing it. If somebody else has already put the work in, you should give credit where credit is due. I don't know all the legal ins-and-outs, but normal academic citation is not usually a violation of copyright, whether you cite primary or secondary sources.

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Táim ag foghlaim fós. Fáilte roimh gach aon cheartúchán.

Oh, I definitely plan on citing where I got the data from, including quoting the sources where he collected his data from as well. I'm just more worried about on whether it's legal to use the data at all, even with citing it.

I agree with Mick here. Anything you pull from another person's work must be cited, and if you're just using small quotes, mainly to illustrate a point, there's usually no problem. If you find you're pulling extensively from the book, it would be considered polite, at the very least, to contact him, tell him what you propose to do, and get his blessing. I don't know Irish copyright law, but I do know that, in the U.S., if you use substantial amounts of another person's published work, even if you make minor changes here and there, you can be sued for copyright violation unless it is very clearly being cited as a resource.

Redwolf

"The data" is the Irish language. A language is not protected by copyright.
(Except Klingon, perhaps)

Once it is in a database, who is any the wiser. After all, it will be you or someone you know, who inputs it

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__̴ı̴̴̡̡̡ ̡͌l̡̡̡ ̡͌l̡*̡̡ ̴̡ı̴̴̡ ̡̡͡|̲̲̲͡͡͡ ̲▫̲͡ ̲̲̲͡͡π̲̲͡͡ ̲̲͡▫̲̲͡͡ ̲|̡̡̡ ̡ ̴̡ı̴̡̡ ̡͌l̡̡̡̡.___