Beneath the linden tree (I saw my gentle mother) I learned from a recording of Pearl Jacobs Borusky, which can be heard at the Wisconsin Folksong Collection website. I couldn't find any information about it, other than it's also the title of a leider by Schubert or some such.

Beneath the Linden Tree
From the singing of Pearl Jacobs Borusky
Recorded 1941-07-26

I saw my gentle Mother
Fast fading day by day
And like a captive songster
Her spirit soared away.

And oh they said my father
Was buried in the sea
But they buried Sister Mary
Beneath the linden tree.

And oh, alas, how dreary
The earth was cold and chill
With no one left to cheer me
But gentle brother Will.

We loved each other fondly
And roamed the world with glee
But now he sleeps dear Willie
Beneath the linden tree.

I know that I am dying
I'm fading fast away
Like mist clouds on the ocean
Like night before the day.

I soon shall join the circle
And happy, happy, be
And then they'll lay me down to rest
Beneath the linden tree