What poem began with Early in the morning of a lovely summer's day?

The name of the poem is "Early in the Morning". It's by Robert Hillyer. There's a really beautiful solo composed by Ned Rorem that sets this poem to music as well.

Early in the Morning

Robert Hillyer

Early in the morning

Of a lovely summer day,

As they lowered the bright awning

At the outdoor café,

I was breakfasting on Croissants

And café au lait

Under greenery like scenery,

Rue François Premier.

They were hosing the hot pavement

With a dash of flashing spray

And a smell of summer showers

When the dust is drenched away,

Under greenery like scenery,

Rue François Premier.

I was twenty and a lover

And in Paradise to stay,

Very early in the morning

Of a lovely summer day.