<p>Having a sibling at Harvard may be an advantage, but I think much depends on how many other siblings are also applying in any given year. Last year, for example, Harvard must have had a lot of siblings apply, as I know of three super-qualified siblings who were passed over:</p>
<p>Student #1: Sister a sophomore at Harvard. Sibling applicant had a 97 unweighted GPA with a 36 ACT. Sibling rejected by Harvard; he is now attending Yale.</p>
<p>Student #2: Brother a senior at Harvard. Sibling applicant had 95 unweighted GPA, 2270 SAT. Sibling rejected by Harvard; he is now attending Cornell.</p>
<p>Student #3: Sister a senior at Harvard. Both other siblings attended Harvard AND both parents attended Harvard. Sibling applicant had a 96 unweighted GPA, 2240 SAT. Sibling rejected by Harvard; she is now attending Georgetown.</p>