Details from Burke's 1938, wikipedia and some other searching I did.
Sir George William PRESCOTT, 1st Bt (died 1801) m. 1774 Sarah LONG [issue 7 sons, 3 dau]
1. Sir George Beeston PRESCOTT, 2nd Bt (1775 - 1840) m. 1799 Catherine Creighton MILLS [issue 2 sons, 3 dau]
1.1 Sir George William PRESCOTT, 3rd Bt (1800 - 1850) m. 1stly 1827 Emily SYMES (died 1829) [no issue], m. 2ndly 1845 Eliza HILLIAR [issue 2 sons]
1.1.1 Sir George Rendlesham PRESCOTT, 4th Bt (1846 - 1894) m. 1872 Louise Franklin LAWSON [issue 2 sons, 1 dau]
1.1.1.1 Sir George Lionel Lawson Bagot PRESCOTT, 5th Bt (1875 - 1942) m. Elizabeth Hughes FELL (nee MERCER) [?no issue]
1.1.1.2 Sir Charles William Beeston PRESCOTT, 6th Bt OBE (1877 - 1955) ?dunm?
1.1.1.3 Maude Helen PRESCOTT (died 1935) m. 1903 Sir Raleigh Gilbert EGERTON KCB KCIE (of the [GREY-]EGERTON baronets) [issue 1 son, 1 dau]
1.1.2 Charles William PRESCOTT-WESTCAR (1848 - 1910) [assumed additional surname of WESTCAR in 1882] m. 1880 Constance EVANS [issue 2 sons]
1.1.2.1 Charles Henry Beeston PRESCOTT(?-WESTCAR) (1881 - 1954) m. 1910 Sara Judith WARRAND [?no issue]
1.1.2.2 Sir William Villiers Leonard PRESCOTT-WESTCAR, 7th Bt (1882 - 1959) m. 1925 Thora FIELDING (of the DENBIGH earls) [issue 1 son, 1 dau]
1.1.2.2.2 Jellis (or Yellis) PRESCOTT-WESTCAR (1926 - ??)
We've previously documented titles that fell to extinction due to the death of the last holder or the heir in WW1 and WW2 - this is an example of a title that could have survived if not for the death of its heir in the Korean War.