I've been able to determine that Terry Poirier was a member of the band that called themselves "Newtown."
Here's the recording from the self-titled Newtown album:

https://www.youtube.com/watch?v=EsXqm3IaokE

The chorus in the first post is correct.

ANGELITA
(Terry Poirier)

CHORUS
Oh Angelita, my love for you is an open door
If you'll come and stay with me
My heart will sing forevermore.

1. Sit out on my new front porch,
Watch the sun a-sinkin'
Flowin' through the cypress trees,
It's of you I'm thinkin'

2. Met you at a Sunday dance,
Many an eye upon it,
Seemed to me an artist fair,
With a golden hand had drawn it.

3. If I was gone a thousand years,
No one 'd even miss me
[no idea]
The moment that you first kissed me.

Some folks covet gold and coin
Some want to be famous,
All I want is your sweet love,
And a little boy name's Amos (???)

Love to hear the way you laugh,
Hurt to hear you cryin'
Hope that it's your voice I hear
On the day that I lie dyin'


As you can see, I need some help on the verses. Post corrections below, and I'll add them here.