I found this entry for Leona on RWWC, courtesy of Kathy Franklin-Hamilton:

Name: Leona Clarenda Emerson
Birth: 30 MAR 1891 in Van Buren Co., Arkansas
Death: 20 JUL 1987

Father: Joseph"Jody" Marion Emerson b: 17 JAN 1869 in Arkansas
Mother: Amanda Matilda Henley b: 17 MAR 1871 in Arkansas

Marriage 1 James Madison Pack b: ABT 1888
Married: 1910 in Van Buren Co., Arkansas
Marriage Ending Status: Divorce

Marriage 2 W. Ernest Hall b: ABT 1890
Married: 1916 in Van Buren Co., Arkansas
=========================================

The following records are in agreement with Kathy Franklin-Hamilton's entry, although that isn't proof; there are lots of James Packs and Leona Halls in this world. Also, it looks like Leona married Earnest William Hall first, then James Madison Pack. She had a weakness for men who switched between first and middle names on the census.

=========================================

1910: Wheeler, Van Buren, Arkansas; Roll: T624_66;
Page: 14B; Enumeration District: 116; Image: 823.

Joseph M Emerson 41
Amanda M Emerson 39
Leona C Emerson 19
Marion F Emerson 17
Myrtle P Emerson 15
Gracie V Emerson 11
Essie E Emerson 9
Wilma M Emerson 7
Elda A Emerson 5
Reba P Emerson 0
=======================

1920: Fort Smith Ward 3, Sebastian, Arkansas; Roll: T625_82;
Page: 1A; Enumeration District: 155; Image: 371.

Earnest Hall 27 head
Leona Hall 28 wife
Joe Hall 25 Brother
=======================

1930; Census Place: Craig, Van Buren, Arkansas; Roll: 97;
Page: 9B; Enumeration District: 9; Image: 116.0.

William E Hall 38
Leona C Hall 39

William is using his middle name to throw people off the track.
=======================

The SSDI has

LEONA Pack
b. 10 Mar 1891
d. Jul 1987
LR 72031 (Clinton, Van Buren, AR)

This is either
1) A remarkable coincidence (except 10 Mar vs 30 Mar on the birth date) and no relation to our Leona
2) Leona mis-recorded under her first married name
3) Our Leona who has gone back her first married name
4) No relation to our Leona, but someone saw it, didn't know about the divorce and copied her dates.
5) Leona married James Madison Pack AFTER Earnest William Hall died.
======================

On to James Madison

=======================

World War I Draft Registration Cards, 1917-1918
Serial # 1436
Name: James Madison Pack
County: Van Buren
State: Arkansas
Birth Date: 20 Sep 1885
Race: White
occupation: Farming
Nearest relative: Flossie Mable Pack

Location: Scotland or Scertleed or Sc*tl**l, Ark, unless it isn't. "Ark" is pretty clear. JM was probably better with an axe or a shovel than with a pen. I'll bet when you shake his hand you can feel the calluses.

Tall, slender, blue eyes, light hair
==========================

1920: Craig, Van Buren, Arkansas; Roll: T625_83;
Page: 5A; Enumeration District: 126; Image: 425.

James M Pack, 34, head, Ark, NC, Ark
Flossie Pack, 28, wife, Ark Indiana, Missouri
Velmer Pack, 7, dau, Ark, Ark, Ark
Prentice M Pack, 24, brother, Ark, NC, Ark
==========================

I can't find them in 1930.
==========================

1910: Hartsugg, Van Buren, Arkansas; Roll: T624_66;
Page: 16A; Enumeration District: 125; Image: 1078.

HH/Fam 227/239
Madison J Pack, 24, head, Ark, NC, Ark
Flossie M. Pack, 18, wife, Ark, Indiana, Missouri
(Married 0 years)

HH/Fam 228/240
Andy Pack, 50, head, NC, NC, NC
Parlee R Pack, 45, wife, Ark, Ga, Ga
Prentice M Pack, 14, son, OK, NC, Ark
Alexander J Pack, 11, Son, Ark, NC, Ark
Erna M Pack, 9, Dau, Ark, NC, Ark

Note Prentice M there, b. 1895/96
==========================

Betting that Andy is JM's dad, I look and find:

1900: Hartsugg, Van Buren, Arkansas; Roll: T623 78;
Page: 2B; Enumeration District: 139.

Anderson Pack, 40
Rosa P Pack, 34
Madison J Pack, 14 <<<
Roda J Pack, 12
Willie M Pack, 7
Printice M Pack, 5 <<<
Jessie A Pack, 1

Prentice proves it for me.
==========================

http://www.rootsweb.ancestry.com/~arvanbur/Marriages/bkgrd.h...

has VB Co. marriages, graciously transcribed by Karen L. (Hildebrand) Stevens.

Pack, J. M. to Read, Flossie on 12 Dec 1909; Book 10, p. 73
and
Emerson, Leona to Hall, Earnest on 11 Aug 1916; book 11, p. 310
=========================