Not really being interested in that much AD&D-Trav cross-breeding myself, but being a long-time Dwarf fan, I house-ruled that article into:
Human (gene-gineered) Dwarves in Traveller
This version of Dwarf is of genetically-modified human stock. They are the descendents of an early effort to develop hardy workers for deep-space habitats. They were shortened in height to reduce volume requirements for living spaces, in an effort to reduce building costs. Their musculature was modified to be more efficient, in order to reduce food/life support costs, and still keep their strength to the higher end of normal. Their immune systems were boosted to counter-act the high cross-infection rates normal in enclosed, close-proximity populations. All other characteristics remain human, with the exception of age, which is increased due to their hardier make-up. This hardiness also increases their “G-tolerance”, giving them a +1 DM for rolls involving the effects of high-G worlds and similar situations.
Dwarves tend to form self-sufficient ethnic population clusters, similar to the ghettos/”little cities” common in late pre-space Terran cities. This self-exclusion contributes to the negative impression felt by most Imperial officials, which is manifested in a scarcity of Patents of Nobility or high offices being granted to/won by dwarves. Most Dwarven societies have embraced the legendary stereotype suggested by their physiology, and their culture reflects this fascination with archaic weaponry, skills, and attitudes.
Independence and self-reliance are highly-respected virtues, resulting in manufacturing or repairing skills and careers among the most respected in normal society. Otherwise, careers are as normal, but they do tend toward Belter, Free Trader, Merchant, and similar careers. All of these dwarves spend at least one 4-year term as a Dwarf before entering the normal career resolution process. This first term begins at the age of 25 years.
Survival, positions and promotions, skills and training, and reenlistment are all as per Traveller Book 1, p. 5-6. Reenlistment is mandatory on a roll of 12. Dwarves may serve up to twelve terms voluntarily, and may retire any time after the sixth term of service. Mustering out is conducted exactly as described on p. 7 of Book 1, with extra die rolls for higher ranks and with restrictions on how many times the cash benefits table may be consulted.
Except for the periods between aging rolls being longer than the human norm, aging effects are applied in the same way as for humans. See the Dwarven Aging Table and p. 7-8 of Book 1 for details. Dwarves usually live to be about 130 years of age (150 in tech level 13 and higher communities). Note that aging effects can reduce strength and endurance below the initially rolled minimums of 6 and 9, respectively.
There follows two pages of the appropriate CT chargen tables, including aging points.