"Away in a Manger" is one of the most popular Carols. It was first published in the late nineteenth century.
Here is an arrangement for Classical Guitar solo (or fingerstyle with nylon strings guitar).
With standard notation and Tablature, with downloadable simple mp3 for audio help. 
With lyrics and Melody line. Two pages, easy Guitar.

Londonderry Air is an air that originated in county Londonderry, Northern Ireland.
Here is an arrangement for Guitar solo or guitar and voice. Early Intermediate.
With Tablature. With downloadable mp3 just for audio help.
With lyrics and melody line. With finger position suggestions.
Pages: three pages, 1:55 min.

The Coolin, (orThe Coolun) is an Irish air often characterised as one of the most beautiful in the traditional repertoire. The tune is also known as "The Lady of the Desert".

For fingerstyle Guitar solo. Early Intermediate.

With standard notation and tablature.
With finger position suggestions. With downloadable mp3 just for audio help.

Pages: One (1) page.

A 19th century Valse transcribed from tablature Guitar to sdandard notation Guitar.

For Guitar solo.

With Guitar tablature. With finger position suggestions. With downloadable mp3 for audio help.

Early intermediate.

Pages: 2 pages, 1:40' min.

Just a Closer Walk with Thee is a traditional gospel song that has been performed and recorded by many artists. The title and lyrics of the song allude to the Biblical passage from 2 Corinthians 5:7 which states, "We walk by faith, not by sight"  and James 4:8, "Come near to God and He will come near to you."

For Guitar or Guitar and Voice.

With melody line. With lyrics. With standard notation and tablature (TAB). With Guitar chords.
With downloadable mp3 just for audio help or sing-along.
Early Intermediate.
Pages: Two (2) pages.