It's sort of OK. The problem is that it is not obvious for whom the citation refers. Is it for him? a child? You might say in the biography above the sources section something like: Cahn Frimin Giroir was born June 8, 1858 in Terrebonne, Louisiana to Auguste Lucien Giroir and Clemence Harson. Then follow that by pasting the citation there. Then highlight the citation and click on the "Big C" box above the biography field which will set it in ref tags.
Try it and I hope that helps. Otherwise make a comment and I'll do it for you if that is indeed what the citation represents.
