I found this amazing, and I hope you will too... “tidbits of information” concerning the life of some of the Genesis patriarchs and how their life-span overlapped with other patriarchs in the Old Testament.
Compiled by Nathan M. Meyer and Alice Hoover
2. After the flood, there was an immediate and drastic drop in the life-span of man. Shem, the firstborn son of Noah, died at the age of 600 (Genesis 11:10, 11); Abraham at 175 (Genesis 25:7, 8). The average age of the first 10 patriarchs after the flood was 317 years.
3. Enoch, 7th from Adam, preached to Adam. His subject was the coming of the Lord (Jude 14).
4. When Adam died, his living descendants in the godly line numbered 8 generations.
5. According to the biblical account, creation took place about 6,000 years ago.
6. The first 2,100 years of human history are covered by four men whose life-spans overlapped. It took only one man to stand between Adam and Noah; only two men between Adam and Abraham, Adam told Methuselah who told Noah what God told Adam in the Garden of Eden.
Methuselah lived 969 yrs. ~ Genesis 5:27
Adam overlapped Methuselah by 243 yrs.
Methuselah overlapped Noah by 600 yrs.
Noah lived 950 yrs. ~ Genesis 9:29
Noah overlapped Abraham by 58 yrs.
Abraham lived 175 yrs. ~ Genesis 25:7-8
Adam lived 930 yrs. ~ Genesis 5:5
7. When Noah was born, his living ancestors numbered 6 generations.
8. God began to number the days of man to 120 years. ~ Genesis 6:1
9. Noah was 480 yrs. old when he was warned of God, Genesis 6:13-22. At that time he had no sons. Noah’s firstborn, Shem, was born 22 years after God told Noah he had 120 yrs. to prepare for the flood. Noah was 600 years old when the flood waters came, Genesis 7:6. Noah’s first grandson was born 2 years after the flood, Genesis 11:10.
10. It is possible Noah and Abraham could have fellowshipped with one another: Noah lived for 58 years after Abraham was born.
11. Shem, the son of Noah, lived 35 years longer than Abraham.
12. For a second time, God reduced the years of man to 70 or 80 years. ~ Psalm 90:10
If you are interested in a Longevity Bible Chart, you can go to The Creation Store http://store.creationtoday.org/index/page/product/product_id/332 There you will find a downloadable version, or a 11" x 17" laminated chart, both look to be about $5.00 in cost.