Father-son:
John Adams (2nd president)
John Quincy Adams (6th president)
George H. W. Bush (41st president)
George W. Bush (43rd president)
Second Cousins:
James Madison (4th president)
Zachary Taylor (12th president)
Fifth Cousins:
Theodore Roosevelt (26th president)
Franklin Delano Roosevelt (32nd president)
Grandfather-grandson
William Henry Harrison (9th president)
Benjamin Harrison (23rd president)
William Henry Harrison and Benjamin Harrison (presidents in 1841 and 1889 - 1893 respectively) were grandfather and grandson.
William Henry Harrison and Benjamin Harrison are the only grandfather and grandson pair to both serve as President of the United States. The elder Harrison served as the ninth president, and the younger as 23rd president.
If you are asking what president was the grandson of a president, the answer is Benjamin Harrison, grandson of Wm. H. Harrison. Of course, lots of other people have been grandsons of presidents.
The 4th Great Grandson is the Great Great Great Great Grandson of the individual. Son Father Grandfather Great Grandfather Great Great Grandfather Great Great Great Grandfather Great Great Great Great Grandfather
The great grandson of your great grandfather's brother is your third cousin
There have been two father/ son U.S. Presidencies, the Adamses and the Bushes, and one grandfather/ grandson pair, the Harrisons.
The son of your grandson is your great grandson. You are his great grandmother or great grandfather.
he is old
Your grandfather's brother's grandson is your great uncle's grandson. The grandchildren of great aunts and great uncles are your second cousins.
There very well may be. The name "grandfather clock" comes from people saying, "that clock belonged to my grandfather." Thus, if you have a grandson, and he has a clock, it may be referred to as a "grandson clock."
To be a tenant one is only required to occupy property that they do not own, through lend from the owner or rent paid to the owner. Yes, a person can become a tenant of his grandfather. If a grandfather owns property and lends it to his grandson, or rents it to his grandson, the grandfather is the landlord, and the grandson is the tenant.
Andrew Johnson and Lyndon Johnson are neither father and son or grandfather and grandson.