Mudlark wanted the chords to this song (which is a great one for Veterans' Day), so here is how I play it.   I'm sure my chords are simpler than the ones the big bands used, but these work for me.

Notes on my notation:
Em7 = 022030 (or 022033)
A9 = 043000
The G-->F#-->F-->E7 sequence is a moveable barre chord sequence
a, b, c, d# (which is probably e flat, but I didn't have enough space), and c are notes, not chords.  I just do a little melody run in those last two lines, around the Fm and G chords.

Also, on my screen, I have printed a down arrow in lines 1, 9, and 12, for a walkdown, but I'm not sure it will come out that way in the thread.

Genie

I'll Be Seeing You
 Irving Kahal (?) & Sammy Kahn (?)   © ca. 1929

 G  [    Em7
I'll be seeing you
     C                   D7
In all the old familiar places
   C                          D7
That this heart of mine embraces
  G             Em7
All day through,
 C           Em
In that small cafe,
         C         Em
The park across the way,
          D             D7
The children's carousel,
          G                           A9
The chestnut tree, the wishing well.
 G  [    Em7
I'll be seeing you
     C                   D
In every lovely summer's day,
     C                            D
In everything that's light and gay.
      G           [          B7
I'll always think of you that way.
        C                       B7
I'll find you in the morning sun
           G            F#     F   E7
And when the night is new,
  a   bFm
I'll be looking at the moon,
   c    d   d#d c G
But I'll be seeing you.