Main characters at top:

Xushi Koh Clan

Just below top two characters (first verticle line):
gaoyangshijia for the elevation of the generations.(DK: I don't think Gavin is right here, but I have yet to resolve this with him.))

Left margin:

Zuguo shu Homeland situated at:
Guangdong sheng Province of Guangdong [Canton].
Chaozhou fu Chaozhou [Teochew] County.
Chao an xian Chao'an [Teo'ang] District.
Shangfu du Shangfu City.
Hongan zhai Hongan Village.
(Henglong) liwai (long ridge) outside the walls.
Hongjiangonci xiang Hongjiagongci Lane.

Next verticle line of text:

Da zong ci beixu lieming The clan's guide to rank

First 3 characters on the verticle line

Neisishi Inside: a four line poem. (DK prefers - "the inner four verses")

The next four lines read up to down:

Shouke junzi de Follow the ways of a gentleman
dingwei wanren ze And set the principles to be followed by all.
yuan liang jia da dao You will be praised for following the Tao;
jing mou yi jue shi Pass down wisdom and good management.

Next set of verses - second 3 characters on the second verticle line

Waisishi Outside: a four line poem. (DK prefers - "the outer four verses")

feng qi zhi shi yong Be prosperous for many generations.
qing ruo weiri chong Be thankful for blessings daily received.
tongye meiqizhao Build up the family business and property
zuoyin yiyihong And may the prosperity inherited by your descendants be further prospered