I'm recording instrumental versions of "Morning Has Broken" and "Poor Wayfaring Stranger" and want to know if they are public domain. Mudcat lists "Morning...", credits Eleanor Farjean with the lyrics and music as trad., and at the end has a copyright date of 1957. With my sax/instrumental version, do I need to worry about lyrics copyright?

"Poor Wayfaring Stranger" gives no credit, and at end simply says recorded by Ives, others. Can I assume this is public domain?

Thanks for any help, Wes